MCQ
For any charge configuration, equipotential surface through a point is _____ to electric field at that point.
- APerpendicular.
- BNormal.
- CParallel.
- DBoth a and b.
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If a number of sine waves with modulation indices n1, n2, n3 ........ modulate a carrier wave, then total modulation index (n) of the wave is
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(a) n1 + n2 .... + 2(n1 + n2.....) |
(b) |
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(c) |
(d) None of these |
Consider the following two statements
A. Energy spectrum of a-particles emitted in radioactive decay is discrete
B. Energy spectrum of b-particles emitted in radioactive decay is continuous
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(a) Only A is correct |
(b) Only B is correct |
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(c) A is correct but B is wrong |
(d) Both A and B are correct |
Which logic gate is represented by following diagram

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(a) AND |
(b) OR |
(c) NOR |
(d) XOR |