A body cools from `50^@C` to `49^@C` in 5 s. How long will it take to cool from `40^@C` to `39.5^@C`? Assume the temperature of surroundings to be `30^@C` and Newton's law of cooling to be valid:

A body cools from 50^@C to 49.9^@C in 5 s. How long will it take to cool from 40^@C to 39.9^@C ? [Assume the temperature of surroundings to be 30^@C and Newton's law of cooling to be valid]

A body cools from 50^@C to 49.9^@C in 5 s. How long will it take to cool from 40^@C to 39.9^@C ? Assume the temperature of surroundings to be 30^@C and Newton's law of cooling to be valid:

A body cools from 50.0^(@)C to 48^(@)C in 5s. How long will it take to cool from 40.0^(@)C to 39^(@)C ? Assume the temperature of surroundings to be 30.0^(@)C and Newton's law of cooling to be valid.

A body cools from 50.0^(@)C to 49.9^(@)C in 5s. How long will it take to cool from 40.0^(@)C to 39.9^(@)C ? Assume the temperature of the surroundings to be 30.0^(@)C and Newton's law of cooling to be valid:

A body cool from 50.0^(@) C to 39.9^(@) C in 5 s . How long will it take to cool from 40.0^(@) C to 39.9^(@) C ? Assume the temperature of surroundings to be 30^(@) C and Newton's law of cooling to be valid

A body cools from 50.0^(@)C to 49.9^(@)C in 10s. How long will it take to cool from 40.0^(@)C to 39.9^(@)C ? Assume the temperature of the surrounding to be 30.0^(@)C and Newton's law of cooling to be valid.

A body cools from 90^@C to 80^@C in 2 minutes. How long will it take to cool from 70^@C to 50^@C if temperature of surroundings is 16^@C ?

A body cools from 80^@C to 50^@C in 5 minuts. Calculate the time it takes to cool from 60^@C to 30^@C . The temperature of surrounding is 20^@C .