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

Describe Kashi Yatre of Triveni. Why was the grandmother so much influenced by it?

Posted by Snigdha Pandey (Mar 27, 2017 11:17 p.m.) (Question ID: 4557)

Literature Reader N.C.E.R.T

Posted by Snigdha Pandey (Mar 27, 2017 11:15 p.m.) (Question ID: 4556)

Why are temperate forest found between alitude of 1500 and 3500m mostly found in the southren slopes of himilayas

Posted by Banu Suhas (Mar 27, 2017 9:42 p.m.) (Question ID: 4553)

Give pen piture of novel tree men in a boat.

 

Posted by venkateshu venkateshu (Mar 26, 2017 3:56 p.m.) (Question ID: 4527)

ratio of age of brother and sister is 3 2 represent this situation in linear equation in two variables

Posted by Eswar Eswar (Mar 26, 2017 8:52 a.m.) (Question ID: 4515)

  • Answers:
  • Ans. 

    Let age of brother = x

    Age of sister = y

    According to question,

    {tex}=> {x\over y} = {3\over 2}{/tex} => 2x = 3y

    => 2x - 3y = 0

    Required Linear Equation

     

    Answered by Naveen Sharma (Mar 26, 2017 10:05 a.m.)
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Write a dairy on topic-

When your friend abhinav driving two wheeler and he is not 18 years?

Posted by Tanisha Jain (Mar 25, 2017 8:15 p.m.) (Question ID: 4509)

Write a diary on a topic-

When your grandfather got hit by a car?

Posted by Tanisha Jain (Mar 25, 2017 8:12 p.m.) (Question ID: 4508)

Why was William Shakespeare compare the 7 stage of man in the poem of the seven ages

Posted by Nisha Sangwan (Mar 25, 2017 6:10 a.m.) (Question ID: 4496)

The radii of two cylinders are in ratio 2:3 are their heights are in ratio 5:3. Calculate the ratio of their volumes and the ratio of their curved surface.

Posted by Harshith Kambanna (Mar 25, 2017 5:08 a.m.) (Question ID: 4495)

  • Answers:
  • Ans. Let radius of first cylinder = 2x

    Height of first cylinder = 5y

    Volume of first cylinder = {tex}\pi \times (2x)^2\times 5y = 20\pi x^2y{/tex}

    Curved surface area of first cylinder = {tex}2\pi\times 2x\times 5y = 20\pi xy{/tex}

    Radius of 2nd cylinder = 3x

    Height of 2nd cylinder = 3y

    Volume of 2nd cylinder = {tex}\pi (3x)^2 \times 3y = 27\pi x^2y{/tex}

    Curved surface Area of 2nd cylinder = {tex}2\pi\times (3x)\times 3y = 18\pi xy{/tex}

    Ratio of Volume = {tex}20\pi x^2y\over 27\pi x^2y {/tex}= 20:27

    Ratio of CSA = {tex}20\pi xy\over 18\pi xy{/tex}= 10:9

    Answered by Naveen Sharma (Mar 25, 2017 10:25 a.m.)
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Diagonalsof a quadrilateral biaect each other.angle P=45.find angle Q

Posted by Gautam Rana (Mar 23, 2017 10:30 p.m.) (Question ID: 4467)

How to write vigyapan lekhan in Hindi

Plss tell me

Posted by Nimisha Agarwal (Mar 23, 2017 9:56 p.m.) (Question ID: 4463)

  • Answers:
  • By hand

    Answered by Tejas Shende (Mar 24, 2017 9:03 p.m.)
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A submarine emits a sonar pulse which return from an underwater cliff in 1.2 seconds if the speed of sound in a sea water is 1530 metre per second how far is the Cliff from the submarines

Posted by priyanshu kohli (Mar 23, 2017 7:59 p.m.) (Question ID: 4460)

  • Answers:
  • Time =1.2second

    Distance = ?

    Speed = distance travelled /time taken

    1530=distance/1.2

    Distance = 1530×1.2 = 1836m

    So1836m far cliff from submarine

    Answered by Tanisha Jain (Mar 23, 2017 9:22 p.m.)
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In a factory 4 bulb 100 watt each and 5 fans of 110 what is operate for 12 hours daily. calculate the unit of electricity consumed also find the total expenditure of 1 unit cost rupees 2.50

Posted by priyanshu kohli (Mar 23, 2017 7:54 p.m.) (Question ID: 4459)

  • Answers:
  • Ans. Power of 4 bulbs of 100 Watt = {tex}4\times 100 = 400W = 0.4KW{/tex}

    Power of 5 Fans of 110 Watt = {tex}5\times 110 = 550W = 0.55KW{/tex}

    Total Power = 0.4 + 0.55 = 0.95KW

    Time = 12hours

    Electricity Consumed = {tex}Power \times time{/tex}

    => {tex}0.95\times 12 = 11.40 \space KWh{/tex}

    Rate of Unit = 2.50 Rs.

    Total Expenditure = {tex}11.40 \times 2.50 = 28.50 Rs{/tex}

    Answered by Naveen Sharma (Mar 24, 2017 8:44 a.m.)
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Loaded test tube placed pure milk sinks to a certain mark m and now some water is mixed with the milk will a test tube sink more or less explain

Posted by priyanshu kohli (Mar 23, 2017 7:50 p.m.) (Question ID: 4458)

  • Answers:
  • Loaded Test tube (Lactometer) will sink more as the desnity of milk is decreased due to addition of water.

    Answered by RAJENDRA SINGH (Mar 24, 2017 9:43 a.m.)
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A force of 300 Newton acts on a surface of area 10 centimetres square calculate thrust and pressure calculate the change in pressure is the area increase to 50 centimetre square

Posted by priyanshu kohli (Mar 23, 2017 7:44 p.m.) (Question ID: 4457)

  • Answers:
  • Force = 300N

    Area of square = 10 cm2 = 0.01 m2

    Thrust = Force/ area = 300N/ 0.01 m2 = 30000 Pa.

    New area= 50 cm2 = 0.25 m2

    new pressure = 300/0.25 = 1200 Pa.

    Answered by RAJENDRA SINGH (Mar 24, 2017 9:52 a.m.)
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The mass of a iron cube having an edge length 1.8 centimetre is 70 gram find density

Posted by priyanshu kohli (Mar 23, 2017 7:33 p.m.) (Question ID: 4456)

  • Answers:
  • Ans. Edge of iron cube = 1.8 cm

    Volume of iron cube V = {tex}1.8\times 1.8\times 1.8 = 5.832cm^3{/tex}

    Mass of iron cubd m = 70g 

    {tex}Density \space \rho = {mass \over volume } ={ 70\over 5.832}{/tex}= 12.0027g/cm3

    Answered by Naveen Sharma (Mar 23, 2017 10:30 p.m.)
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How do you determine the maximum number of electron that can be accommodated in particular cell of an atom

Posted by priyanshu kohli (Mar 23, 2017 7:31 p.m.) (Question ID: 4454)

  • Answers:
  • By the formula of (2n²)

    Like for the k shell = we know that k shell is the first shell of atom so by using above formula we easily calculate the maximum number of electon accomondate in a shell where n is the no. of shell 

    (2n²)= 2×(1)²=4

    So k shell have maximum four electrons

    So by using this formula we find no. Of electrons in L shell M shell and so on.....

    Answered by Tanisha Jain (Mar 23, 2017 9:33 p.m.)
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What is the other name of ration shop

Posted by Tanisha Jain (Mar 23, 2017 12:42 p.m.) (Question ID: 4441)

  • Answers:
  • PDS

     

    Answered by aryan sharma (Mar 23, 2017 4:11 p.m.)
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Classify the disease into categories on the basis of period of their appearance and explain in brief. give two example of disease of each category.

Posted by Sahil Jaiswal (Mar 23, 2017 12:21 p.m.) (Question ID: 4440)

  • Answers:
  • Two categaries of disease on the basis of period of their appearance are

    a. Acute disease

    b. Chronic disease.

    Answered by RAJENDRA SINGH (Mar 23, 2017 6:30 p.m.)
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define avogadro constant

Posted by Aashish Dewangan (Mar 23, 2017 8:07 a.m.) (Question ID: 4431)

  • Answers:
  • Avogardo number is the a constant that represpents 6.22 x 1023 particles. it is the number of particles present in one mole of  any element or molecule.

    Answered by RAJENDRA SINGH (Mar 23, 2017 8:28 a.m.)
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What is gravitation

Posted by Lucky Boy (Mar 23, 2017 7:36 a.m.) (Question ID: 4430)

  • Answers:
  • Gravitation is the force by which earth attracts all the objects towards its centre.

    Answered by RAJENDRA SINGH (Mar 23, 2017 8:29 a.m.)
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What is a poverty line and tell  according to income of poor people? 

Posted by chirag saxena (Mar 22, 2017 11:10 p.m.) (Question ID: 4423)

what are ions?

 

Posted by HARSH SINGH (Mar 22, 2017 9:08 p.m.) (Question ID: 4421)

  • Answers:
  • Charge particles are called ions. Positevely charged ions are called cation and negatively charged ions are called anion.

    Answered by RAJENDRA SINGH (Mar 22, 2017 9:46 p.m.)
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any four characterstics of the frog?

 

Posted by HARSH SINGH (Mar 22, 2017 9:08 p.m.) (Question ID: 4420)

  • Answers:
    • Frog is an amphibian.
    • It is cold blooded animal.
    • It can live in water as well as land.
    • body is soft and slippery.
    Answered by RAJENDRA SINGH (Mar 22, 2017 9:49 p.m.)
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what is atomic no.?

 

Posted by HARSH SINGH (Mar 22, 2017 9:07 p.m.) (Question ID: 4419)

  • Answers:
  • The number of protons present in the nucleus of an atom is called atomic number.

    Answered by RAJENDRA SINGH (Mar 22, 2017 9:50 p.m.)
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what is nomenclature?

 

Posted by HARSH SINGH (Mar 22, 2017 9:07 p.m.) (Question ID: 4418)

  • Answers:
  • The process of naming scientifically following rules is balled nomenclature. In biology it is called as binomial nomenclature.

    Answered by RAJENDRA SINGH (Mar 22, 2017 9:51 p.m.)
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what is the symbol,atomic no. and atomic mass of sodium?

 

Posted by HARSH SINGH (Mar 22, 2017 9:07 p.m.) (Question ID: 4417)

  • Answers:
  •  symbol- Na

    atomic no- 11

    atomic mass- 23

    Answered by anisha grover (Mar 22, 2017 9:30 p.m.)
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what is nucleus of an atom?

 

Posted by HARSH SINGH (Mar 22, 2017 9:06 p.m.) (Question ID: 4416)

  • Answers:
  • The centre of atom where proton and nuetron are present is called as nuclus. Nucleus is positively charged.

    Answered by RAJENDRA SINGH (Mar 22, 2017 9:53 p.m.)
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who found electrons?

 

Posted by HARSH SINGH (Mar 22, 2017 9:05 p.m.) (Question ID: 4415)

  • Answers:
  • Electron is discovered by J J Thomson.

    Answered by RAJENDRA SINGH (Mar 22, 2017 9:54 p.m.)
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what is scientific name of tiger?

 

Posted by HARSH SINGH (Mar 22, 2017 9:05 p.m.) (Question ID: 4414)

  • Answers:
  • Scientific name of tiger is Panthera tigris

    Answered by RAJENDRA SINGH (Mar 22, 2017 9:57 p.m.)
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