Assertion :A particle is projected upwards with speed v and it goes to a height 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∝1r2r≥R
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is D Both Assertion and Reason are incorrect
maximum height h=u22g
h∝u2 when g is constant.
Because, for higher values of v, acceleration due to A gravity g does not remain constant