A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely, the time period is_________________?

Related Mcqs:

1. The force responsible for the vibratory motion of the simple pendulum is_________________?

   A. mg cosθ B. mg sinθ C. mg tonθ D. mg...

2. A body of 2 kg is suspended from the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be______________?

   A. 9.8 N B. 19.6 N C. 129.4 N D. 39.2 N...

3. If a current carrying solenoid is suspended freely it will__________________?

   A. be rotating B. come to rest in N-S direction C. vibrating like galvanometer needle D. comes to rest after rotation...

4. A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10 ?

   A. 15 m B. 20 m C. 5 m D. 25 m...

5. The restoring force acting on the simple pendulum is given by_______________?

   A. mg sin θ B. mg sin θ C. mg cos θ D. mg cos θ...

6. The natural frequency of simple pendulum depends upon_______________?

   A. It’s mass B. It’s length C. Square of its length D. The square root of its length...

7. Total distance travelled by a bob of the simple pendulum in one vibration is equal to________________?

   A. Amplitude B. Square of the amplitude C. 2 x amplitude D. 4 x amplitude...

8. At Murree Hills (Assume the value of g changes). If we use a simple pendulum as time standard then one-second duration will_____________?

   A. Increase B. Decrease C. Remains the same D. Is zero...

9. In case of a simple pendulum, the cause of damping is__________________?

   A. Drag force of air B. Gravity C. Tension in the string D. None of these...

10. A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?

    A. 1/4f B. 1/2f C. frequency lower than 20 Hz D. 2f...