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A block of mass M is attached to the low...

A block of mass M is attached to the lower end of a vertical spring. The spring is hung from a ceiling and has force constant value k. The mass is released from rest with spring initially unstretched. The maximum extension produced in the length of the spring will be............

A

`(2Mg)/(k)`

B

`(4Mg)/(k)`

C

`(Mg)/(2k)`

D

`(Mg)/(k)`

Text Solution

Verified by Experts

The correct Answer is:
D
Restoring force `F= -kx= Mg`
(x is the extension of spring)
`therefore x= (Mg)/(k)` (magnitude).
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KUMAR PRAKASHAN-OSCILLATIONS-SECTION-E (MCQs ASKED IN GUJARAT BOARD AND COMPETITIVE EXAMS)
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  2. Which one of the following equations of motion represent simple harmon...

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  3. A block of mass M is attached to the lower end of a vertical spring. T...

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  6. Out of the following functions representing motion of a particle which...

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  8. What is the maximum speed of a particle executing SHM with amplitude o...

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  9. A large horizontal surface moves up and down in SHM with an amplitude ...

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  10. If a simple pendulum oscillates with an amplitude of 50 mm and time pe...

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  11. If the period of oscillation of mass m suspended from a spring 2s, the...

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  12. A particle executes simple harmonic motion with an angular velocity an...

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  13. Two springs are connected to a block of mass M is placed on a friction...

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  14. Which of the following functions of time represent (a) simple harmonic...

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  15. A horizontal surface moves up and down in SHM with an amplitude of 1 c...

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  16. A particle executes SHM of period T and amplitude l along a rod AB of ...

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  17. A ball is suspended by a thread of length L at the point O on a wall w...

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  18. Let T(1)" and "T(2) be the time periods of spring A and B when mass M ...

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  19. In the equation of motion of waves in x-direction is given by y= 10^(-...

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  20. Total energy of SHM particle…….

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