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23rd August 2014, 02:36 PM
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Join Date: Apr 2013
Re: CBSE Physics Exam Question Paper

As per your demand here I am sharing the last year question paper of CBSE XII Physcis Exam

What is a wavefront? Distinguish between a plane wavefront and a spherical wavefront. Explain with the help of a diagram, the refraction of a plane wavefront at a plane surface using Huygen’s construction.

Define the term ‘Activity’ of a radioactive substance. State its SI unit.
Two different radioactive elements with half lives T1 and T2 have N1 and N2

Draw diagrams to depict the behaviour of magnetic field lines near a ‘ bar’ of:
(i) copper
(ii)Aluminium
(iii) Mercury, cooled to a very low temperature (4.2K)

Draw a ray diagram to show the refraction of light through a glass prism. Hence obtain the relation for the angle
of deviation in terms of the angle of incidence, angle of emergence and the angle of the prism.

Rest of the Questions are attached in below file which is free of cost





Attached Files
File Type: pdf CBSE XII Physics Exam Question Paper.pdf (73.3 KB, 220 views)


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