1. For which Diode is used?
2. Who among the following developed the technology of underground nuclear explosion ?
A.Dr. Homi J. Bhabha
B.Dr. Vikram Sarabhai
C.Dr. Raja Ramanna
D.Dr. P. K. Iyengar
3. Which among the following types of coal produces most heat per unit ?
4. Which among the following waves is used for communication by artificial satellites ?
D.Frequency of 1016 series
5. What is found in frequency modulation?
C.Change in frequency and dimension
D.Change in dimension only
6. When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ?
7. The dimension of which of the following is the same as that of impulse ?
D.Change in the rate of momentum
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