Home
Class 12
PHYSICS
A body cools at the rate of 0.75 °C/s, w...

A body cools at the rate of 0.75 °C/s, when it is 50 °C above the surrounding. Its rate of cooling, when it is 30 °C above the same surrounding, will be

A

`0.32^(@)C//s`

B

`0.125^(@)C//s`

C

`0.40^(@)C//s`

D

`0.45^(@)C//s`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

A body cools at the rate 0.50^@C's when it is at 50^@C above the surrounding temperature. Its rate of cooling when it is 30^@C above the same surrounding temperature will be

A body cools at the rate of 1.5 °C/min when its temperature is 30 °C above that of the surrounding. At what temperature above the surrounding will it cool at the rate of 1 °C/min?

A body cools at the rate of 4^@C per minute when its temperature is 70^@C . What will be its rate of cooling when its temperature is 50^@C ? (Assume temperature of surrounding to be 30^@C )

A metal sphere cools at the rate of 0.05^@ C/s when its temperature is 70^@ C and at the rate of 0.025^@ C /s when its temperature is 50^@ C . Determine the temperature of the surroundings and find the rate of cooling when the temperature of the metal sphere is 40^@C .

A metal sphere cools at the rate of 1.6^@C//min when itstemperature is 60^@C . At what rate will it cool when its temperature is 50^@C ? The temperature of surroundings is 30^@C .

A metal sphere cools at the rate of 1.6^@ C /min when its temperature is 70^@ C . At what rate will it cool when its temperature is 40^@ C. The temperature of surroundings is 30^@ C.

The rate of cooling at 600 K, if surrounding temperature is 300 K is R. The rate of cooling at 900 K is

A body cools from 80^(@)C to 60^(@)C in 5 minutes. Then its average rate of cooling is

A black body at 227^(@)C radiates heat at the rate of 7 cal cm^(-2) s^(-1) . At a temperature of 727^(@)C , the rate of heat radiated in the same unit will be

When a body has the same temperature as that of its surroundings