Home
Class 11
PHYSICS
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

1 s

B

`sqrt(2)` s

C

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

D

`2 sqrt(2) s`

Text Solution

Verified by Experts

The correct Answer is:
B

`T^(1) = 2pi sqrt((l)/(g+a)) = 2pi sqrt((l)/(g+g))=(T)/(sqrt(2)) = (2)/(sqrt(2))=sqrt(2)`
Promotional Banner

Topper's Solved these Questions

  • OSCILLATIONS

    NARAYNA|Exercise EXERCISE - I (H.W)|66 Videos
  • OSCILLATIONS

    NARAYNA|Exercise EXERCISE - II (C.W)|27 Videos
  • OSCILLATIONS

    NARAYNA|Exercise C. U . Q|75 Videos
  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise PASSAGE TYPE QUESTION|6 Videos
  • PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|10 Videos

Similar Questions

Explore conceptually related problems

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

The length of a simple pendulum is 16 cm . It is suspended by the roof of a lift which is moving upwards with an accleration of 6.2 ms^(-2) . Find the time period of pendulum.

A seconds pendulum is suspended from the ceiling of a trolley moving horizontally with an acceleration of 4 m//s^(2) . Its period of oscillation is

A simple pendulum consists of an inextensible string of length L and mass M. The oscillating pendulum is suspended inside a stationary lift. The lift then started descending with an acceleration 3.4 m//s^(2) . Will its time period increase, decrease or remain same?

A simple pendulum whose length is 20 cm is suspended from the ceiling of a lift which is rising up with an acceleration of 3.0ms^(-2) . Calculate the time-period of the pendulum.

Time period of a simple pendulum is T inside a lift when the lift is stationary. If the lift moves upwards with an acceleration g/2, the time period of pendulum will be:

A bob of pendulum of mass 50 g is suspended by string with the roof of an elevator. If the lift is flying with a uniform acceleration of 5m s^(-2) the tension in the string is (g = 10m s^(-2))

The period of simple pendulum is measured as T in a stationary lift. If the lift moves upwards with an acceleration of 5 g, the period will be

A simple pendulum of length L is suspended from the roof of a train. If the train moves in a horizontal direction with an acceleration 'a' then the period of the simple pendulum is given by

A simple pendulum with a bob of mass m is suspended from the roof of a car moving with horizontal acceleration a

NARAYNA-OSCILLATIONS-EXERCISE - I (C.W)
  1. Two particles P and Q start from origin and execute simple harmonic mo...

    Text Solution

    |

  2. The length of a pendulum changes from 1m to 1.21m. The percentage chan...

    Text Solution

    |

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

    Text Solution

    |

  4. The bob of a simple pendulum of mass 100g is oscillating with a time p...

    Text Solution

    |

  5. Three simple pendulums have length of strings 49cms, 48 cms and 47 cms...

    Text Solution

    |

  6. The period of a simple pendulum is found to increases by 50% when the ...

    Text Solution

    |

  7. In a spring block system if length of the spring is increased by 4%, t...

    Text Solution

    |

  8. A spring of natural length 80cm with a load has a length of 100cm. If ...

    Text Solution

    |

  9. A spring of force constant k is cut into two equal parts, and mass 'm'...

    Text Solution

    |

  10. A spring of force constant k is cut into two parts whose lengths are i...

    Text Solution

    |

  11. A mass M is suspended from a spring of negligible mass. The spring is ...

    Text Solution

    |

  12. Two masses m(1)and m(2) are suspended from a spring of spring constant...

    Text Solution

    |

  13. When a body of mass 1.0 kg is suspended from a certain light spring ha...

    Text Solution

    |

  14. A spring of spring constant 200N//m has a block of mass 1kg hanging at...

    Text Solution

    |

  15. A spring balance has a scale that reads 0 to 20kg. The length of the s...

    Text Solution

    |

  16. A body of mass 'm' is suspended to an ideal spring of force constant '...

    Text Solution

    |

  17. Infinite springs with force constants k, 2k, 4k, 8k,….. respectively a...

    Text Solution

    |

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

    Text Solution

    |

  19. The total energy of a particle executing simple harmonic motion is 16J...

    Text Solution

    |

  20. Find the average kinetic energy of a simple harmonic oscillator if its...

    Text Solution

    |