Home
Class 11
PHYSICS
A piece of lead falls from a height of 1...

A piece of lead falls from a height of 100 m on a fixed non - conducting slab which brings it to rest . The temperature of the piece immediately after collision increase by ( specific heat of lead is `30.6 cal kg^(-10) C^(-1) `and` g= 9.8ms^(-2)`)

A

`6.72^(@)C`

B

`7.62^(@)C`

C

`5.62^(@)C`

D

`8.72^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A piece of aluminium falls from a height of 200m on a fixed non conducting slab which brings it to rest. If the specific heat of aluminium is 210 Cal/kg. the increase in temperature of the slab immediately after collision (assume that there is no loss of heat)

A brass sphere of mass 0.2 kg falls freely from a height of 24m and bounces to a height of 8m from the ground. If the dissipated energy in this process is dosorbed by the sphere the rise in its temperature is (specific heat of brass =360 J " kg"^(-1)k^(-1) and g=10ms^(-2) ).

A lead bullet of mass 21 g travelling at a speed of 100m//s comes to rest in a wooden block . If no heat is taken away by the wood , the rise in temperature of the bullet in the wood nearly is (specified heat of lead = 30 cal//kg^(@)C )

A steel ball of mass 0.1 kg falls freely from a height of 10m an bounces to a height of 5.4m from the ground. If the dissipated energy in this process is absorbed by the ball, the rise in ots temperature is (Specific heat of steel= 460 JKg^(-1)K^(-1)) (g=10ms^(-2)) .