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Assertion : A particle is projected upwa...

Assertion : A particle is projected upwards with speed `upsilon` and it goes to a heigth `h`. If we double the speed then it will move to height `4h`.
Reason : In case of earth, acceleration due to gravity g varies as
`g prop(1)/(r^(2))` (for `r ge R`)

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explantion of Assertion.

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
`h = (u^(2))/(2g)` or `h prop u^(2)` cannot be applied in this case.
Beause, for heigher value of `upsilon`, acceleration due to gravity g does not remain constant.
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