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Assertion: Time period of vibration of a...

Assertion: Time period of vibration of a pair of magnets in sum position is always smaller than in difference position.
Reason:`T=2pi sqrt(I//MH)', where symbols have their standard meaning.

A

If both Assertain and Reason are true and Reason is the correct explanation of Assertain

B

If both Assertain and Reason are true but Reason is not correct explantion of Assertain

C

If Assertion is true but Reason is false

D

If Assertion is false but Reason in true.

Text Solution

Verified by Experts

The correct Answer is:
B
The time period in sum position, `T_(s)=2pi sqrt((I_(s))/(M_(s)H))`
`where, " "I_(s)+I_(1)+I_(2) and M_(s)=M_(1)+M_(2)`
` " " T_(s)=2pi sqrt((I_(1)+I_(2))/((M_(1)+M_(2))H))`
Time period in difference position,
` " " T_(d)=2pi sqrt((I_(1)+I_(2))/((M_(1)-M_(2))H)) Rightarrow T_(s)lt T_(D)`
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