GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
6. | If the mass of the bob of a pendulum is doubled its time period is: | ||
A. | Halved. | ||
B. | Unchanged. | ||
C. | Doubled. | ||
D. | Increase four times. | ||
7. | The centre of Newton rings is dark due to: | ||
A. | Polarization. | ||
B. | Destructive interference. | ||
C. | Constructive interference. | ||
D. | Reflection. | ||
8. | Which one is most stable element on the basis of binding energy? | ||
A. | Sn. | ||
B. | Ba. | ||
C. | Kr. | ||
D. | Fe. | ||
9. | Resistance in RC circuit of time constant 2 seconds is 1000 Ohms. What is value of C in the circuit? | ||
A. | 2 μ farad. | ||
B. | 20 μ farad. | ||
C. | 200 μ farad. | ||
D. | 2000 μ farad. | ||
10. | The Lenz’s law refers to induced _________ | ||
A. | emf. | ||
B. | Resistance. | ||
C. | Shears. | ||
D. | Currents | ||