Forced vibration is known as_____________________?
Forced vibration is known as_____________________? A. Simple harmonic vibration B. Natural vibrationC. Driven harmonic vibration D. Free vibration
Forced vibration is known as_____________________? A. Simple harmonic vibration B. Natural vibrationC. Driven harmonic vibration D. Free vibration
In damped harmonic oscillation which one decreases ? A. Amplitude of vibration B. Energy of vibrationC. Both amplitude and energy D. Neither amplitude nor energy
When K.E energy of SHM is maximum its__________________? A. P.E is zero B. Acceleration is zero C. Restoring force is zeroD. All P.E acceleration and restoring force are zero
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 amplitudeD. 4 x amplitude
Electrical resonance is observed in_______________? A. Radio B. Microwave oven C. Both in radio and microwave oven D. Neither in radio nor in a microwave oven
The natural frequency of simple pendulum depends upon_______________? A. It’s mass B. It’s length C. Square of its lengthD. The square root of its length
The sharpness of resonance is__________________? A. Directly proportional to the damg forceB. Inversely proportional to the damg force C. Equal to the square of damg force D. Equal to the square of damg force
The phase of SHM describes________________? A. Displacement only B. The direction of motion onlyC. Both displacement and direction of motion D. Neither displacement nor direction of motion
The restoring force acting on the simple pendulum is given by_______________? A. mg sin θB. mg sin θ C. mg cos θ D. mg cos θ
Which one does not work according to resonance ? A. T.V B. Radio C. Microwave ovenD. Bulb