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A seconds pendulum is suspended from the...

A seconds pendulum is suspended from the roof of a lift. If the lift is moving up with an acceleration `9.8 m//s^(2)`, its time period is

A

1s

B

`sqrt(2)`s

C

`(1)/(sqrt(2))`s

D

`2 sqrt(2)` s

Text Solution

Verified by Experts

The correct Answer is:
B
Seconds pendulum = T = 2s
`(T^(1))/(T) = sqrt((g)/(g+a)) = sqrt((g)/(g+g)) = (1)/(sqrt(2))`
`T^(1) = sqrt(2)s`
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NARAYNA-OSCILLATIONS-EXERCISE - I (H.W)
  1. A simple pendulum of length l is connected to the ceiling of a vehicle...

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  2. A pendulum suspended from the roof of an elevator at rest has a time ...

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  3. A seconds pendulum is suspended from the roof of a lift. If the lift i...

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  4. If the length of a seconds pendulum is increased by 2% then in a day t...

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  5. Two simple pendulums have time periods T and 5T//4. They start vibrati...

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  6. Two simple pendulums of length 100m and 121m start swinging together. ...

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  7. A second pendulum is attached to roof of a car that is moving with acc...

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  8. A second pendulum is attached to roof of a car that is sliding down al...

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  9. A simple pendulum executing SHM in a straight line has zero velocity a...

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  10. A seconds pendulum at the equator (g = 9.78 ms^(-2)) is taken to the p...

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  11. The time period of a simple pendulum of infinite length is (R=radius o...

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  12. The mass M shown in the figure oscillates in simple harmnonic motion a...

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  13. A body of mass m is suspended from three springs as shown in figure. I...

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  14. A load of mass M is attached to the bottom of a spring of mass 'M //3'...

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  15. An oscillating mass spring system has mechanical energy 1 joule, when ...

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  16. A light spiral spring supports 200g weight at its lower end oscillates...

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  17. The time period of a mass loaded spring is 'T'. If 20% of its turns ar...

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  18. A particle executes SHM with an amplitude of 10cm and frequency 2 Hz. ...

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  19. A body performs simple harmonic oscillations along the straight line A...

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  20. The amplitude of oscillation of particles in SHM is sqrt(3)cm. The dis...

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