CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now

What message does the poet convey on the story thank you mam

Posted by Bowler Jin 5 years ago (10192642)

CBSE > Class 11 > English Elective NCERT

1 answers

Yogita Ingle 5 years ago (2577571)

Three themes present in "Thank You, Ma'am" are Forgiveness and Empathy, the Power of Love and Trust, and Christian Charity. While she prepares the meal, Mrs. Jones leaves her purse on the other side of the screen where she cooks. Roger worries that she may not trust him, so he moves where he hopes she can see him.

0 Thank You

ANSWER

Explain formation of urine in humans...

Posted by Kumari Shalini 5 years ago (9968457)

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years ago (2577571)

The mechanism of urine formation involves the following steps:

Glomerular Filteration

Glomerular filtration occurs in the glomerulus where blood is filtered. This process occurs across the three layers- epithelium of Bowman’s capsule, endothelium of glomerular blood vessels, and a membrane between these two layers.

Blood is filtered in such a way that all the constituents of the plasma reach the Bowman’s capsule, except proteins. Therefore, this process is known as ultrafiltration.

Reabsorption

Around 99 percent of the filtrate obtained is reabsorbed by the renal tubules. This is known as reabsorption. This is achieved by active and passive transport.

Secretion

The next step in urine formation is the tubular secretion. Here, tubular cells secrete substances like hydrogen ion, potassium ion, etc into the filtrate. By this process, the ionic, acid-base and the balance of other body fluids are maintained. The secreted ions combine with the filtrate and form urine. The urine passes out of the nephron tubule into a collecting duct.

Urine

The urine produced is 95% water and 5% nitrogenous wastes. Wastes such as urea, ammonia, creatinine are excreted in the urine. Apart from these, the potassium, sodium and calcium ions are also excreted.

4 Thank You

Srikant Tech 5 years ago (9682775)

What do you mean by displacement

2 Thank You

ANSWER

Given that HCF(306,657)=9, find LCM (306,657)

Posted by Nishant Mathur 5 years ago (10061416)

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years ago (2577571)

Given that HCF = 9 and the numbers are 306 and 657 .
LCM = ?
We know that LCM × HCF = product of two numbers
⇒LCM × 9 = 306 × 657
⇒LCM = 201042/9 = 22338

1 Thank You

Ranbeer Boparai 5 years ago (7435236)

We don't need the given part in this question, we can directly find the LCM(306,657) by prime factorisation method. 306=2×3×3×17 657=3×3×73. So, the LCM of 306 and 657 is 2×3×3×17×73=22338

1 Thank You

ANSWER

derry character

Posted by Assamese Dance Class 5 years ago (10193636)

CBSE > Class 12 > English Core

1 answers

Anisha Yadav 5 years ago (9781063)

#Derry was a 14year old boy, who had been gone through an acid attack ,which had burnt his face adversely #He had a sort of shame and down graded confidence due to his burnt face.also he used to kept himself away from social places as hr didn't like to have false sympathy of people #With the help of mr. Lamb , he felt an incurred confidence in himself with a feeling of freedom.

1 Thank You

ANSWER

If the zero of polynomial ax square+bc+c are in ratio 4:5 prove that 20 b square=81ac

Posted by Ayushi Maurya 5 years ago (10118528)

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years ago (2577571)

Let roots 4k and 5k
4k+5k =-b/a
9k =-b/a
K=-b/9a..... (1)
4k*5k=c/a
20k²=c/a
Sub ... (1)
20 (-b/9a)²=c/a
20 (b²/81a²)=c/a
20 b²= 81 ac

0 Thank You

Ranbeer Boparai 5 years ago (7435236)

Let the zeroes be 4p, 5p. We know that the sum of the zeroes=-b/a. Then, 4p+5p=9p=-b/a. p=-b/9a, then, p^2=b^2/81a^2...(1) And the product of zeroes is c/a. Then 4p×5p=c/a. 20p^2=c/a then, p^2=c/20a...(2) Using (1) and (2). b^2/81a^2=c/20a. Then, 20b^2=81ac.

0 Thank You

ANSWER

3y + 4 = 0

Posted by Chinki Chinki 5 years ago (10193591)

CBSE > Class 09 > Mathematics

4 answers

Aanaya Sharma 5 years ago (8607105)

3y=-4 Y=-4/3

0 Thank You

Shamshad Alam 5 years ago (7323064)

This is easy peasy??????????

0 Thank You

Ashmita Das 5 years ago (10150611)

3y + 4 = 0 3y = - 4 y = - 4/ 3

3 Thank You

Yogita Ingle 5 years ago (2577571)

3y + 4 = 0

3y = - 4

y= -4/3

4 Thank You

ANSWER

Tricks to remember the decreasing priorities of functional groups.

Posted by Pk✍️ . 5 years ago (9782480)

CBSE > Class 11 > Chemistry

1 answers

?????? ?? 5 years ago (10099899)

Gud eve dono ko??

0 Thank You

ANSWER

NCERT solutions of chapter 5, computer

Posted by Suman Smith 5 years ago (9584227)

CBSE > Class 08 > Computer

1 answers

Lalit Kumar 5 years ago (9616175)

I don,t no

0 Thank You

ANSWER

2 prime no

Posted by Samunder Singhal 5 years ago (10192890)

CBSE > Class 10 > Mathematics

2 answers

Mayank Rauthan 5 years ago (10201183)

The numbers that are only divisible by 1 are called prime numbers. Ex-2,3,5.....etc

0 Thank You

Hiya . 5 years ago (10155831)

2, 3

0 Thank You

ANSWER

Which element present in Chlorophyll and Haemoglobin

Posted by Anshul Verma 5 years ago (10186341)

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years ago (2577571)

Chlorophyll is remarkably similar in structure to haemoglobin which is defined as the oxygen carrying pigment found in the red blood cells of mammals and other vertebrates. Therefore, the metallic element present in chlorophyll is magnesium (Mg).

2 Thank You

Nicolas Tesla 5 years ago (10193681)

Hemoglobin and chloroplast is made up of same structure where as hemoglobin is compose of irons and chloroplast is made in green in clolour due to plastids present in them..

0 Thank You

ANSWER

What according to you can be done in the case of Johnsy?..... If Behrman's role is not in the story... What will you do to save Johnsy who had lost willingness to live?

Posted by Yukti Verma 5 years ago (10144550)

CBSE > Class 09 > English Lang & Lit. (184)

1 answers

Ashmita Das 5 years ago (10150611)

Jhonsy must be given positive motivations which would help her to recover. She should be encouraged by Sue, who is her best friend.

3 Thank You

ANSWER

Deleted topic in math

Posted by Ranger King 5 years ago (10095284)

CBSE > Class 11 > Mathematics

1 answers

Ranger King 5 years ago (10095284)

DELETED PORTION MATHEMATICS - 041 CLASS XI UNIT/ CHAPTER SYLLABUS REDUCED Unit- I: Sets and Functions 1.Sets Difference of sets. Complement of a set. Properties of Complement 2.Relations & Functions (up to RXRXR ). Sum, Difference, product and quotients of functions 3. Trigonometric Functions General Solutions of trigonometric equations of the type siny=sina, cosy=cosa and tany= tana. Unit II: Algebra 1.Principle of Mathematical Induction Delete full chapter 2.Complex Numbers and Quadratic Equations Polar representation of complex numbers. Square root of a complex number. 3.Linear Inequalities Nil 4. Permutations and Combinations Derivationof formulae for nPrandnCr 5.Binomial theorem Delete full Chapter 6. Sequence and Series Formulae for the following special sums ∑ ?,∑k2,∑ ?3 . Unit III: Coordinate geometry 1.Straight Lines Shifting of origin. Equation of family of lines passing through the point of intersection of two lines. 2 Conic sections a point, a straight line and a pair of intersecting lines as a degenerated case of a conic section. 3.Introduction to Three-dimensional Geometry Nil Unit-IV : Calculus 1.Limits and Derivatives Nil Unit-V : Mathematical Reasoning 1.Mathematical Reasoning Delete full chapter Unit-VI: Statistics and Probability 1. Statistics Analysis of frequency distributions with equal means but different variances. 2. Probability Axiomatic (set theoretic) probability, connections with other theories of earlier classes

3 Thank You

ANSWER

ativ, miha and nupur were partners sharing profit and loss in the ratio 5:3:2. on 31.3.2016 their balance sheet was as follows: liabilities trade creditors - 26,500 employees provident - 23,500 capitals: 1,00,000 50,000 40,000

Posted by Soma Sundaram 5 years ago (8469804)

CBSE > Class 12 > Accountancy

0 answers

ANSWER

656

Posted by Prabh Pawar 5 years ago (10170376)

CBSE > Pre-School > Mathematics

0 answers

ANSWER

In an arithmatic progression the sum of first m terms is n and the sum of first n terms is m. Prove that the sum of its first (m+n) terms is -(m+n)

Posted by Sakshi Tiwari 5 years ago (10145302)

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years ago (2577571)

Given, sum of first m terms of an A.P. is n.

Also, sum of first n terms is m.

Subtracting (2) from (1),

Hence, the sum of its first (m + n) terms is -(m + n).

2 Thank You

ANSWER

X+2=6

Posted by Pragati Kumar 5 years ago (10130419)

CBSE > Class 10 > Mathematics

5 answers

Hemanth V 5 years ago (9931942)

X=4

0 Thank You

Mayank Rauthan 5 years ago (10201183)

x+2=6 Send the 2after 6 with negative sign.now it will be... x=6-2=4 The answer is 4.

0 Thank You

Priyanshi Kashyap 5 years ago (9839864)

x=4

0 Thank You

Yogita Ingle 5 years ago (2577571)

X+2=6

x = 6 - 2 = 4

0 Thank You

Ishan Goyal 5 years ago (8976495)

X= 4 ??

0 Thank You

ANSWER

Find the 10th term of the AP:2,7,12, ...

Posted by Uma Yadav 5 years ago (10152583)

CBSE > Class 10 > Mathematics

5 answers

Shreya P Shreya P 5 years ago (10159716)

10th term of the Given AP is 47

0 Thank You

Lucky Tanwar 5 years ago (10045339)

Kaise kaise log hai

0 Thank You

Priyanshi Kashyap 5 years ago (9839864)

0 Thank You

Ishan Goyal 5 years ago (8976495)

As a=2, d=a2-a1= 7-2 = 5 an= a+(n-1)×d a10= 2+(10-1)×5 a10= 2+(9)×5 a10= 2+45 a10= 47 ?

1 Thank You

Sakshi Tiwari 5 years ago (10145302)

10th term of the AP is 47

1 Thank You

ANSWER

Find three numbers in G.P. whose sum is 28 and whose product is 512.

Posted by Dhruv Sharma 5 years ago (6970983)

CBSE > Class 11 > Mathematics

2 answers

Ranger King 5 years ago (10095284)

Let the three numbers be a,ar, ar2, where r is the common ratio. ⇒a+ar+ar2=28 and a3r3=512 ⇒ar=8⇒a+ar2=20 ⇒8r2−20r+8=0 ⇒r=2,r=21 If r=2,a=4 Therefore, the three numbers are 4,8,16

1 Thank You

Yogita Ingle 5 years ago (2577571)

The three numbers in GP are 4 , 8 , 16.

Let the three numbers in GP be a/r , a , ar.
Now the product of three numbers is given as 512.

a/r × a × ar = 512

a³ = 512

a = 8

Now sum of the three numbers is given as 28.

a/r + a + ar = 28

8/r + 8 + 8r = 28

8 + 8r² = 20r

8r² - 20r + 8 =0

8r² - 16r - 4r + 8 =0

8r(r-2) - 4(r-2) = 0

(r-2)(8r-4) = 0

Therefore, r = 2 or r=1/2
Now , the three numbers are 4,8,16.

1 Thank You

ANSWER

How did the knowledge of age ancient text help the reformers promote new laws?

Posted by Saziya Kausar 5 years ago (9219494)

CBSE > Class 08 > Social Science

2 answers

Yogita Ingle 5 years ago (2577571)

The reformers used the ancient texts to convince people about the need for abolishing certain social evils like widow burning, caste distinctions, child marriage, etc. They believed that if they take the help of the ancient religious texts to support their ideas, it will surely put an impact on people's minds. Thus they used quotation from ancient texts to give weight to their arguments.

1 Thank You

Diksha Laniya🐥 5 years ago (10085318)

How did the knowledge of ancient texts help the reformers promote new laws? Answer: The reformers used the ancient texts to convince people about the need for abolishing certain social evils like widow burning, caste distinctions, child marriage, etc.

2 Thank You

ANSWER

Kon kon sa chapter ki miscellaneous karni ha

Posted by Naveen Kharb 5 years ago (7332167)

CBSE > Class 12 > Mathematics

2 answers

Diksha Singh 5 years ago (10035434)

Sab kar lo accha hoga

4 Thank You

Jyoti Yadav 5 years ago (9184611)

Every chapter

5 Thank You

ANSWER

All dimension formula

Posted by Ranger King 5 years ago (10095284)

CBSE > Class 11 > Chemistry

1 answers

Ranger King 5 years ago (10095284)

Dimensional Formulas for Physical Quantities Physical quantityUnitDimensional formulaAcceleration or acceleration due to gravity ms–2 ,LT–2,Angle (arc/radius)rad,MoLoTo ,Angular displacementrad,MoloToAngular frequency (angular displacement/time)rads–1T–1Angular impulse (torque x time)NmsML2T–1Angular momentum (Iω)kgm2s–1ML2T–1Angular velocity (angle/time)rads–1T–1Area (length x breadth)m2L2Boltzmann’s constantJK–1ML2T–2θ–1Bulk modulus (\Delta P.\frac{V}{\Delta V}ΔP.ΔVV.)Nm–2, PaM1L–1T–2Calorific valueJkg–1L2T–2Coefficient of linear or areal or volume expansionoC–1 or K–1θ–1Coefficient of surface tension (force/length)Nm–1 or Jm–2MT–2Coefficient of thermal conductivityWm–1K–1MLT–3θ–1Coefficient of viscosity (F =\eta A\frac{dv}{dx}ηAdxdv)poiseML–1T–1Compressibility (1/bulk modulus)Pa–1, m2N–2M–1LT2Density (mass / volume)kgm–3ML–3Displacement, wavelength, focal lengthmLElectric capacitance (charge/potential)CV–1, faradM–1L–2T4I2Electric conductance (1/resistance)Ohm–1 or mho or siemenM–1L–2T3I2Electric conductivity (1/resistivity)siemen/metre or Sm–1M–1L–3T3I2Electric charge or quantity of electric charge (current x time)coulombITElectric currentampereIElectric dipole moment (charge x distance)CmLTIElectric field strength or Intensity of electric field (force/charge)NC–1, Vm–1MLT–3I–1Electric resistance (\frac{potential\text{ difference}}{current}currentpotential difference)ohmML2T–3I–2Emf (or) electric potential (work/charge)voltML2T–3I–1Energy (capacity to do work)jouleML2T–2Energy density (\frac{energy}{volume}volumeenergy)Jm–3ML–1T–2Entropy (\Delta S=\Delta Q/TΔS=ΔQ/T)Jθ–1ML2T–2θ–1Force (mass x acceleration)newton (N)MLT–2Force constant or spring constant (force/extension)Nm–1MT–2Frequency (1/period)HzT–1Gravitational potential (work/mass)Jkg–1L2T–2Heat (energy)J or calorieML2T–2Illumination (Illuminance)lux (lumen/metre2)MT–3Impulse (force x time)Ns or kgms–1MLT–1Inductance (L) (energy =\frac{1}{2}L{{I}^{2}}21LI2) or coefficient of self-induction henry (H)ML2T–2I–2Intensity of gravitational field (F/m)Nkg–1L1T–2Intensity of magnetization (I)Am–1L–1IJoule’s constant or mechanical equivalent of heatJcal–1MoLoToLatent heat (Q = mL)Jkg–1MoL2T–2Linear density (mass per unit length)kgm–1ML–1Luminous fluxlumen or (Js–1)ML2T–3Magnetic dipole momentAm2L2IMagnetic flux (magnetic induction x area)weber (Wb)ML2T–2I–1Magnetic induction (F = Bil)NI–1m–1 or TMT–2I–1Magnetic pole strength (unit: ampere–meter)AmLIModulus of elasticity (stress/strain)Nm–2, PaML–1T–2Moment of inertia (mass x radius2)kgm2ML2Momentum (mass x velocity)kgms–1MLT–1Permeability of free space (\mu_o = \frac{4\pi Fd^{2}}{m_1m_2}μo=m1m24πFd2)Hm–1 or NA–2MLT–2I–2Permittivity of free space ({{\varepsilon }_{o}}=\frac{{{Q}_{1}}{{Q}_{2}}}{4\pi F{{d}^{2}}}εo=4πFd2Q1Q2.)Fm–1 or C2N–1m–2M–1L–3T4I2Planck’s constant (energy/frequency)JsML2T–1Poisson’s ratio (lateral strain/longitudinal strain)––MoLoToPower (work/time)Js–1 or watt (W)ML2T–3Pressure (for

1 Thank You

ANSWER

How to find any product of any two elemnts

Posted by Name Surname 5 years ago (10193221)

CBSE > Class 08 > Science

0 answers

ANSWER

Main differences between acids bases and salts

Posted by Name Surname 5 years ago (10193221)

CBSE > Class 08 > Science

4 answers

Ankit Singh 5 years ago (2427224)

An acid is defined as a substance whose water solution tastes sour, turns blue litmus red and neutralizes bases. A substance is called base if its aqueous solution tastes bitter, turns red litmus blue or neutralizes acids. Salt is a neutral substance whose aqueous solution does not affect litmus. ans

0 Thank You

Diksha Laniya🐥 5 years ago (10085318)

Welcome

1 Thank You

Name Surname 5 years ago (10193221)

Thanks

2 Thank You

Diksha Laniya🐥 5 years ago (10085318)

2 Thank You

ANSWER

The kite seems bright in the sky

Posted by Happy Sharma 5 years ago (10175077)

CBSE > Class 06 > English (OLD)

2 answers

Sandeep Verma 5 years ago (10151408)

Yes ✅✅?

1 Thank You

Jebisha Kezia 5 years ago (10153028)

Hello please teach me English

2 Thank You

ANSWER

Importance of board paper essay in 200 words

Posted by Uzair Khan 5 years ago (10089938)

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Tangkhul

Posted by Masowon Ramshang 5 years ago (10193236)

CBSE > Class 11 > Other Subjects

0 answers

ANSWER

Which of the following are APs ?If they form an AP ,find the common difference d write three more terms . (i)2,4,8,16 ...

Posted by Uma Yadav 5 years ago (10152583)

CBSE > Class 10 > Mathematics

1 answers

Radha Mistry?☺ 5 years ago (7051421)

@Uma Yadav 2,4,8,16,.... a1=2,a2=4,a3=8,a4=16 a2-a1=4-2=2 a3-a2=8-4=4 As a2-a1 not equal to a3-a2 the given list of number does not form an AP

2 Thank You

ANSWER

Explain the use of computer in government sector

Posted by Samar Singh 5 years ago (10193075)

CBSE > Class 09 > Information Technology (402)

2 answers

Khushi Kumari 5 years ago (10205701)

Hiii

0 Thank You

Kashvi Swaroop 5 years ago (10157341)

Use of computer is government sector are: 1)exchange of information 2)communication 3) transaction And many other services between government and the citizens. Help in maintaining records and analysing the data of all citizens in the country.

1 Thank You

ANSWER

Masalon ki rani kon hai

Posted by Khushboo Dhiman 5 years ago (10142453)

CBSE > Class 05 > General Knowledge

1 answers

Isha Garg 5 years ago (9699722)

Turmeric

0 Thank You

ANSWER

Explain the most powerful category of computer

Posted by Samar Singh 5 years ago (10193075)

CBSE > Class 09 > Information Technology (402)

2 answers

Srishty Negi 5 years ago (4152980)

Super computer

0 Thank You

Yogita Ingle 5 years ago (2577571)

SUPER COMPUTER is the most powerful category of computer.

•A supercomputer is a term the most capable processing power of its time.

•Early supercomputers in the 60s and 70s used just a couple processors, while the 90s saw supercomputers with thousands of processors at a time.

•Supercomputers are used in computational science to calculate and carry out a plethora of complex tasks.

•Modelling molecular structures, weather forecasting, and the field of quantum mechanics, among others, rely on supercomputers.

1 Thank You

ANSWER

Page 5006 of 29545

myCBSEguide

CBSE, JEE, NEET, CUET

Glomerular Filteration

Reabsorption

Secretion

Urine

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers