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CBSE Class 12 Science Free Doubts and Solutions

CBSE - XII Science - Physics

A vessel contain 100grm of ice at 0 degree celcius . now steam is passed into vessel to melt ice.  Neglecting the thermal capacity of the vessel , find the mass of the water in the vessel when all ice melts into water. 

Asked by Pankajranagopeshwar 16th April 2019, 6:36 PM
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CBSE - XII Science - Mathematics

Differentiate y= x^ 2. Sin1/2(x)

Asked by geethaarunachalam20 14th April 2019, 4:24 PM
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CBSE - XII Science - Mathematics

If the point R(4,y,z) lies on the line segment PQ, where P(2,-3,4) and Q(8,0,10), then the distance between R and the origin is: A. 2*(14)^1/2 B. 9 C. 2*(21)^1/2 D. (53)^1/2

Asked by bjayanta 14th April 2019, 12:01 PM
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CBSE - XII Science - Chemistry

2-chloro-3-mathlepentane strucer

Asked by sachinnigam2003 13th April 2019, 8:46 PM
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CBSE - XII Science - Physics

I wanted to know a good list of topics for investigative projects for Physics .

Asked by jaideepsnatu 13th April 2019, 2:22 PM
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CBSE - XII Science - Mathematics

A,B are two matrices such that AB and A+B are both defined; show that A,B are square matrices of the same order.

Asked by azizrajil03 13th April 2019, 11:40 AM
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CBSE - XII Science - Chemistry

pl experts ans as soon as possible

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Asked by jain.pradeep 13th April 2019, 12:25 AM
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CBSE - XII Science - Chemistry

pl experts ans as soon as possible

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Asked by jain.pradeep 13th April 2019, 12:25 AM
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CBSE - XII Science - Chemistry

pl experts ans as soon as possible

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Asked by jain.pradeep 13th April 2019, 12:24 AM
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CBSE - XII Science - Chemistry

pl ans the given question as soon as possible experts  

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Asked by jain.pradeep 11th April 2019, 10:52 PM
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