SAMPLE QUESTIONS
1. In a half-wave recifier rms value of the AC component is
a) equal to DC value
b) more than DC value
c) less than DC value
d) zero
2. A motor cyclist is trying to jump across a path as shown by ddriving horizontally off a cliff A at a speed of 5 ms
-1. [Ignore air resistance and take g = 10 ms
-1] . The speed which he touches the peak B is
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a) 2.0 ms
-1
b) 12 ms
-1
c) 25 ms
-1d) 15 ms
-1