Assertion : Time period of a spring-block is T. If length of spring is decreased, time period will decrease. Reason If length is decreased, then the block will have to travel less distance and it will take less time.A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.B. If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.C. If Assertion is true but Reason is false.D. If Assertion is false but Reason is true.

Assertion : Time period of a spring-block is T. If length of spring is

1.	Assertion : Time period of a spring-block is T. If length of spring is decreased, time period will decrease. Reason If length is decreased, then the block will have to travel less distance and it will take less time.A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.B. If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.C. If Assertion is true but Reason is false.D. If Assertion is false but Reason is true.
Answer» Correct Answer - C (c) Force constant of a spring , `k prop (1)/(l)` and `T prop (1)/(sqrt(k))` `therefore T prop sqrt(l)`

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