CBSE > Class 10 > Science | CBSE Board | Homework Help

Because distilledwater does not contain any ionic compound like salt ,acid or base where as tap water contains some salt, acids and base ionic compounds therefore tap water conduct electricity and distilled water does not.

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What makes the cakes soft and spongy

Posted by Student Cbse 2 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Samiksha Chhipa 2 years, 1 month ago

Baking soda

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Sahana Parashetti 2 years, 1 month ago

when baking powder reacts with mild acid it gives baking soda + H2O + CO2 in this reaction CO2 makes the cakes spongy and smooth

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Sumit Rajput 2 years, 1 month ago

When baking powder react with tartaric acid it gives baking powder and co2 . Co2 release in cakes and make spongy and soft

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Yashika Kesharwani 2 years, 1 month ago

Baking soda

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How can baking soda be converted into baking powder

Posted by Student Cbse 2 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Aakriti Dubey 2 years, 1 month ago

Yes, by adding a mild acid like tartaric acid in it.

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Sumit Rajput 2 years, 1 month ago

NAHCO3+C4H4O6=C4H4NA2O6 +CO2

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Student Cbse 2 years, 1 month ago

By adding mild edible acid that is tartaric acid

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Gaurav Kumar 2 years, 1 month ago

By recrystallisation

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ANSWER

what is deflection of light?

Posted by Shivani Umrao 2 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Priyanshu Singh 2 years, 1 month ago

Light

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What are the different types of bread mould write their function

Posted by Charanika Deuri 2 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

why science important for study

Posted by Ankit Kumar 2 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Gaurav Singh 2 years, 1 month ago

Science contains everything.If you will take science stream In class 11 you will study physics if you want to know what is physics answer is that physics contains every thing nature is physics which TV you watched that made by physics. Two famous things about physics :- (1). Physics is the king of science while Mathematics is the queen. (2). Fall in love with physics

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Ankit Kumar 2 years, 1 month ago

thanks

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Ayush Singh 2 years, 1 month ago

Science is important for study for following reasons÷ 1.It help us to know how we work,eat,breath etc.. 2.it also help us how machines work and how can makes it.. 3. It gives perfect reason of anything that happens in world.. 4.It increases our thinking skill..

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ANSWER

Definition of magnification

Posted by Shivam Shiva 2 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Naina Singh 2 years, 1 month ago

Magnification is the value of magnified image with respect to object

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Ayush Singh 2 years, 1 month ago

Magnification is nothing it just a ratio of hight of image up on height of object. Or Ratio of distance of image up on distance of object. According to situation..

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Sanidhya Gorh 2 years, 1 month ago

The ratio of height of image to the height of object is known as magnification.

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Anup Sharma 2 years, 1 month ago

The ratio of height of image (hi)and height of object (ho) then it is called magnification

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Vartika Singh 2 years, 1 month ago

The ratio of height of image (hì) and the height of object (hò)is called magnification..

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Explain the following giving equation in each :- Baking soda is heated Washing soda is heated Gypsum is heated at 373 K

Posted by Jashandeep Kaur 2 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Vaidehi Chaudhari 2 years, 1 month ago

Because the heating point of all is 100°c so the value of Kelvin will be 373 k ( 100 +273)

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ANSWER

How to solve3.5567^24

Posted by Sarika Singh 2 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

How to solve 10×0.1964×10^-6 ÷ 1.6×10^-8

Posted by Bhumika . 2 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Drashti Makan 2 years, 1 month ago

1.2275E -14

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What is school

Posted by Arif Sheikh 2 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Raunak Patel 2 years, 1 month ago

School ek aisi jagah hai jahan se hum log kuch ban kar aur kuch seekh kar aate hai 🙏

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Gaurav Singh 2 years, 1 month ago

School is that place from where many Doctors, Army officers, Engeeneirs and other officers comes and School is the temple of study.

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Garvit Varshney 2 years, 1 month ago

Student's jail

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Ankit Kumar 2 years, 1 month ago

Jahan bacchon ko kuta jata hai aur aur parents ko Luta jata hai

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Shreyas Srinath 2 years, 1 month ago

A place where you learn

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ANSWER

How many hormones present in human body?

Posted by Student Vip 2 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Pravesh Singh 2 years, 1 month ago

There are over 50 hormones present in human body

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Harsh Malhotra 1 year, 8 months ago

Proof:Let √2 is a rational number Then, P/q = √2 Squaring both side (P/q)² = (√2)² P²/q² = 2 Where,. 2 is a rational but, P²/q² is irrational So, √2 is a irrational no

2Thank You

Rahil Khan Khan 1 year, 8 months ago

Prove that under root 2 rational number

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ANSWER

An object and object placed at 20 cm distance from concave mirror for obtaining four times of image of the object height. What will be focal length of mirror ? Please send the correct answer...🥺

Posted by Aadarsh Kumar 2 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Dev Sharma 2 years, 1 month ago

Here u =-20 and let height of object be x and AtoQ ----"---- image 4x Now m=h'/h 4x/x=4 m is also equal to -V/U 4=-v/-20 -80=-v v=80

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Yash Mann 2 years, 1 month ago

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ANSWER

Define human reproductive parts both male and female

Posted by Gø®Ãv D££P 2 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Yash Mann 2 years, 1 month ago

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By the structure of graphite would you know me how it flows the electricity.If not then I will gove answer later.

Posted by Adarsh Dixit 2 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Gaurav Kumar 2 years, 1 month ago

The material become a conductor by their arrangement of electrons not by structure of substance

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Yash Mann 2 years, 1 month ago

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Naman Raj 2 years, 1 month ago

Structure do not require to flow the current the state matters in which state the graphite is ....

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ANSWER

What is neprons

Posted by Ayush And Piyush Rewa 2 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Aroob Khursheed 2 years, 1 month ago

nephron is the basic functional unit of kidney which helps in the formation of urine and excreation of waste products.

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Apurv Roy 2 years, 1 month ago

Small unit of kidney which helps in formation of urine which help in excretion of metabolic waste like amonia and urea .

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Naman Raj 2 years, 1 month ago

Nephron is the basic part of kidney ...

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Vani Shree 2 years, 1 month ago

Smallest unit of kidney

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Shraddha Gupta 2 years, 1 month ago

nephron is the basic functional unit of the kidney

2Thank You

ANSWER

_______ is known as the master of master gland.

Posted by Mohit Gothwal 2 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Shraddha Gupta 2 years, 1 month ago

Pituitary Gland

2Thank You

Paher Goutam 2 years, 1 month ago

pituitary gland

2Thank You

Swarnika Suman 2 years, 1 month ago

Hypothalamus

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Vidhi Jain 2 years, 1 month ago

Hypothalamus

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Anushka Ranjan 2 years, 1 month ago

Pituitary

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ANSWER

Why there is no reflection when light ray falls perpendicular

Posted by Mohini Goswami 2 years, 1 month ago

CBSE > Class 10 > Science

5 answers

Vani Shree 2 years, 1 month ago

Because angle i=0°

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Aryan Dogra 2 years, 1 month ago

Normal

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Shraddha Gupta 2 years, 1 month ago

Because light falling at 0° that's why angle of incidence and angle of reflection is zero degree

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Swarnika Suman 2 years, 1 month ago

Because the angle of incidence and reflection is of zero degree

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Raghvendra Singh 2 years, 1 month ago

Because when light fall perpendicular to surface the light ray retrace back its path because angle of reflection is 0°

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ANSWER

Write any four evidences of evolution.

Posted by Sayali Patil 2 years, 1 month ago

CBSE > Class 10 > Science

2 answers

G Thanusri 2 years, 1 month ago

Actually we didn't have this topic

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Sayali Patil 2 years, 1 month ago

1) morphological evidences 2) anatomical evidences 3)palaeontological evidences 4) embryological evidences.

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A refrigerator having a power rating of 3KW operates for 10 hour a day. Calculate the cost (in rupees) of electrical energy rupees 3.40 per KWh

Posted by G Pranesh 2 years, 1 month ago

CBSE > Class 10 > Science

1 answers

G Thanusri 2 years, 1 month ago

Energy consumed = power x time (i) Energy = 3 kW × 10 h = 30 kWh (ii) 1 kilowatt hour (kWh) = 3.6×106 J 30kWh=30×3.6×106J=1.08×108J

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ANSWER

Light ray AB incidents on a polished surface XY at an angle of 40. The second polished surface is placed in such a way that the reflected ray BC from polished surface XY retraces its path. Find the angle of inclination of two polished surface.

Posted by Tejasv Sahu 2 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Ankit Kumar 2 years, 1 month ago

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How is pollination different from fertilization ?

Posted by Nakshatra Gupta 2 years, 1 month ago

CBSE > Class 10 > Science

0 answers

ANSWER

Function of stomata?

Posted by Gunnu Nishad 2 years, 2 months ago

CBSE > Class 10 > Science

5 answers

Sahana Parashetti 2 years, 1 month ago

tomato it is a part of a plant which helps for the exchange of a gases and and also help for that transpirationprocess transpiration

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Mohit Gothwal 2 years, 1 month ago

It helps in removing the water from leaves. Stomata facilitates gaseous exchange.

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Mohini Goswami 2 years, 1 month ago

It helps in removing water from the leaves. - It takes carbon dioxide and gives out oxygen during the process of photosynthesis. - It helps in regulating water movement through transpiration. Stomata facilitates gaseous exchange.

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Hanniel Reni 2 years, 1 month ago

Stores food

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Pratyush Bidhar 2 years, 1 month ago

Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore. This stomatal movement is affected by several environmental stimuli, such as relative humidity, CO2 concentration, and light intensity.

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ANSWER

36000 j heat energy is to be produced in an electric heater of resistance 1000ohm through which electric current is passed for 5 minutes . Calculate the current passing through heater

Posted by Saksham Khatta 2 years, 2 months ago

CBSE > Class 10 > Science

2 answers

G Thanusri 2 years, 1 month ago

H=I²RT I=√H/Rt =√36000/1000×300 =√0.12=0.35

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Raj Dhakad 2 years, 1 month ago

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The near point of a person suffering from hypermetropia is at 50 cm from is eye. what is the nature and power of the lens needed to correct this defect

Posted by Savitoj Kaur 2 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Student Cbse 2 years, 1 month ago

The nature of lens is convex lens that is converging lens and the power is +2 diopter

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Pratyush Bidhar 2 years, 2 months ago

Use app Login Class 12 >>Physics >>Ray Optics and Optical Instruments >>Defects of Vision and Correction >>The near - point of a person suffering f Question The near-point of a person suffering from hypermetropia is at 50 cm from his eye. What is the nature and power of the lens needed to correct this defect? (Assume that the near-point of the normal eye is 25 cm). Medium Open in App Updated on : 2022-09-05 Solution Verified by Toppr The person needs a convex lens to rectify this defect. Calculation of power of the lens: This hypermetropic eye can see the nearby object kept at 25 cm clearly if the image is formed at its own near point i.e. 50 cm. Object distance, u=−25 cm Image distance, v=−50 cm v1−u1=f1 −501−−251=f1 f=+50 cm P=f(in cm)100=50100=+2D

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ANSWER

Are humans totally aerobic?

Posted by Nehal Agarwal 2 years, 2 months ago

CBSE > Class 10 > Science

4 answers

Aroob Khursheed 2 years, 1 month ago

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Study Dil Sa 1 Chauhan 2 years, 1 month ago

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Mohammad Hadi 2 years, 2 months ago

No humans are not totally aerobic because if we take muscle cramps into consideration they are caused when there is lack of oxygen

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Rati Ram 2 years, 1 month ago

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The sum of n terms of sequence 1/1*2 , 1/2*3 , 1/3*4 .... is

Posted by Divakar Jha 2 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Anurag Verma 2 years, 1 month ago

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Practical of displacement reaction cuso4.5h2o

Posted by Jeepy Mara 2 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Student Cbse 2 years, 1 month ago

Reaction of Iron Nails with Copper Sulphate Solution in Water. When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green

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What is location, function, hormone and deficiency of thymous gland?

Posted by Mohit Gothwal 2 years, 2 months ago

CBSE > Class 10 > Science