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CBSE Class 11 Science Free Doubts and Solutions

CBSE - XI Science - Chemistry

What is monochlorination nd what is answr of 59th

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Asked by lovemaan5500 20th January 2019, 1:24 PM
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CBSE - XI Science - Chemistry

57th ques plz with explanation

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Asked by lovemaan5500 20th January 2019, 1:23 PM
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CBSE - XI Science - Chemistry

How is b the answer of 99th

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Asked by lovemaan5500 20th January 2019, 1:21 PM
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CBSE - XI Science - Chemistry

What is the answer of 1o2 withh explanation

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Asked by lovemaan5500 20th January 2019, 1:15 PM
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CBSE - XI Science - Physics

Calculate the velocity of transverse waves in a copper wire of 1mm^2 in cross section under the tension produced by 1kgwt.The density of copper =8.93kg m^-3.

Asked by Vidushi412 19th January 2019, 11:01 PM
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CBSE - XI Science - Physics

A wave pulse is travelling on a string of linear density 1cm^-1 under a tension of 1kgwt.Calculate the time taken by the pulse to travel a distance of 50cm on the string.Given g=10ms^-2

Asked by Vidushi412 19th January 2019, 10:58 PM
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CBSE - XI Science - Physics

The diameter of an iron wire is 120mm.If the speed of transverse wave in the wire be 50ms^-1.What is the tension in the wire?The density of iron is 7.7*10^3kg m^-3.

Asked by Vidushi412 19th January 2019, 10:55 PM
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CBSE - XI Science - Mathematics

If the Geometric Mean is 1/n times the Harmonic Mean between two positive numbers then show that these numbers are in the ratio 1+√1-n^2 : 1-√1-n^2 (ISC ML AGARWAL)

Asked by Vidushi412 18th January 2019, 2:09 PM
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CBSE - XI Science - Chemistry

Previous years question paper 

Asked by angleheven224 17th January 2019, 8:56 PM
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CBSE - XI Science - Chemistry

What is MOLALITY of water . I am not asking Molarity

Asked by govtsecschoolnayaganv051 17th January 2019, 7:44 PM
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