Two clocks A and B are synchronized to show the same time on earth. Clock A is based on oscillations of spring and clock B is based on a pendulum motion. If these two clocks are taken to the surface of the moon, then

Both will show same time and run at equal rates

A will stop working however B will continue to show time

The bob of simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob get suddenly unplugged. During observation, till water is coming out, the time period of oscillation would

first increase and then decrease to the original value

first decrease and then increase to the original value

increase towards a saturation value

E M B I B E

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 148

EASY

MHT-CET

IMPORTANT

Earn 100

Assertion: If the amplitude of the simple pendulum increases, its time period increases.
Reason: The simple pendulum is to traverse more distance in each vibration when its amplitude is large.

50% studentsanswered this correctly

Important Questions on Oscillations

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 149

If the lift moves up and comes down with uniform speed, then the time period of the pendulum in the lift

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 150

A simple pendulum has a time period

T

. If the support and the pendulum fall freely, the time period will be

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 151

A simple pendulum of length

1 m

is freely suspended from the ceiling of an elevator. The time period of small oscillations as the elevator moves up with an acceleration of

2 m s^{- 2}

,

g = 10 m s^{- 2})

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 152

When the length of a simple pendulum is decreased by

600 mm,

the period of oscillation is halved. The original length of the pendulum was

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 153

A simple pendulum is vibrating in an evacuated chamber, it will oscillate with

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 154

A man having a wrist watch and a pendulum clock rises on a TV tower. The wrist watch and pendulum clock by chance fall from the top of the tower. Then

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 155

Two pendulums begin to swing simultaneously. If the ratio of the frequency of oscillations of the two is

7 : 8

, then the ratio of lengths of the two pendulums will be

EASY

MHT-CET

IMPORTANT

Physics Crash Course MHT-CET>Chapter 7 - Oscillations>Exercise 1>Q 156

Two simple pendulums of length

5 m

and

20 m

, respectively, are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed ___ oscillations.