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A body of density rho is dropped from re...

A body of density `rho` is dropped from rest from height h (from the surface of water) into a lake of density of water `sigma(sigmagt rho)`. Neglecting all disspative effects, the acceleration of body while it is in the take is

A

`g(sigma/rho-1)` upwards

B

`g(sigma/rho-1)` downwards

C

`g(sigma/rho)` upwards

D

`g(sigma/rho)` downwards

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • A body is dropped from a certain height.

    A
    the time taken to travel first half of the height is greater than that for second half.
    B
    time time taken to travel first half of the height is less than that for second half
    C
    the time taken to travel first half of the height is equal to that for second half
    D
    any one of the above three situations may be correct depending upon the value of height.

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    A
    `(hrho)/(sigma-rho)`
    B
    `(h sigma)/(sigma-rho)`
    C
    `(h rho)/(sigma)`
    D
    `(h sigma)/(rho)`

  • A ball of density rho is dropped from a height on the suraca of a non-visous liquid of dinsity 2rho . Choose the correct options.

    A
    Motion of ball is periodic but not simple harmonic
    B
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    C
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    D
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