Home
Class 11
PHYSICS
A body at 50^(@)C cools in a surrounding...

A body at `50^(@)`C cools in a surroundings maintained at `30^(@)` C. The temperature at which the rate of cooling is half that of the begining is

A

`16.3^(0)C `

B

`26.3^(0)C `

C

`40^(0)` C

D

`46.3^(0)` C

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A body at 50^(@)C cools in a surroundings maintained at 30^(@)C . The temperature at which the rate of cooling is half that of the beginning is

A hot body is placed in cooler surroundings. When the body temperature is 75^(@)C , the rate of cooling is 4^(@)C//min . When it is 55^(@)C , the rate of cooling is 2^(@)C//min . The temperature of the surroundings is

A body takes 8 minutes to cool from 90^(@) C to 80^(@) C in a surrounding of temperature 25^(@) C. The time taken by it to cool from 80^(@)C " to" 70^(@) C in the same surroundings is

A frog with body temperature of 20^@C is transferred to an area with 30^@C temperature. What will be the body temperature of frog in the new environment?

A body cools from 70^(@)C to 50^(@)C in 5 minutes. Temperature of surroundings is 20^(@)C . Its temperature after next 10 minutes is

A body cools form 50^(0)C to 40^(0)C in 6 minutes. When its surroundings temperature is 30^(0)C , what will be its temperature 12 min after the start of the experiment? Surrounding temperature remains the same ?

A liquid initially at 75^(0)C cools to 55^(0)C in 12.5 minutes and to 45^(0)C in 10 minutes. Which of the following temperatures is not that of the surroundings