Test your self by solving Physics Sample Paper CBSE 2012, given here.
1. Which physical quantity has its SI unit as
(i) C-m
(ii) Vm
13. Define the term modulation. Name three different types of modulation used for n mess age? signal using a sinusoidal continuous carrier wave. Explain the meaning of any one of them.
14. Explain how the optical communication system offers the possibility of millions of channels with increased band width. Give an additional advantage of optical communication system over n system employing a co-axial cable.
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CBSE Class 12th Physics Sample Paper 2012
Find CBSE Board Exam 2012 Sample Paper for Class XII Physics. This Sample Paper will help you to get the information about latest pattern that how questions are being framed.
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