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Assertion : A conducting rod is placed b...

Assertion : A conducting rod is placed between boiling water and ice. If rod is broken into two equal parts and two parts are connected side by side, then rate of melting of ice will increase to four times.
Reason : Thermal resistance will become four times.

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 explanation 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:
C
`R_1 = 2R and R_2 = R/2`
Thermal resistance becomes `1/4th`. Therefore heat
current becomes four times.
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