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Assertion : When two masses come closer,...

Assertion : When two masses come closer, their gravitaional potential energy decreases.
Reason : In moving attract each other.

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:
B
`U = - (Gm_(1)m_(2))/(R)`
If `r` decrease, `U` also decreases.
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Knowledge Check

  • Two protons attract each other when

    A
    the distance between them is `10^(-10)m`
    B
    the distance between them is `10^(-1)m`
    C
    the distance between them is `10^(-15)m`
    D
    the distance between them is `10^(-6)m`

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    A
    If both Assertion and Reason are true but Reason is the correct explanation of Assertion.
    B
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
    C
    If Assertion is true, but the Reason is false.
    D
    If Assertion is false but the Reason is true.

  • Assertion : When two positive point charges move away from each other, then their electrostatic potential energy decreases. Reason : Change in potential energy between two points is equal to the work done by electrostatic forces.

    A
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
    B
    If both Assertion and Reason are true but Reason is not correct explanation of Assertion.
    C
    If Assertion is true but Reason is false.
    D
    If Assertion is false but Reason is true.