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A steel drill is making 180 revolution p...

A steel drill is making 180 revolution per minute, under a constant forque of 5N-m. If it drills a hole in 7sec in a steel block of mass 600gm, rise in temperature of the block is `(S=0.1 gm^(-1).^(@)C^(-1))`

A

`2.6^(@)C`

B

`1.3^(@)C`

C

`5.2^(@)C`

D

`3^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
A
`tau omegat=JmSDeltatheta(omega=2pin)`
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NARAYNA-KINETIC THEORY OF GASES-LEVEL-III(C.W)
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