Home
Class 12
PHYSICS
A body cools from a temperature 3T to 2T...

A body cools from a temperature 3T to 2T in 10 minutes. The room temperature is T. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

A

`(7)/(4)T`

B

`(3)/(2)T`

C

`(4)/(3)T`

D

T

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

A body cools from a temperature 3 T to 2 T in 10 minutes. The room temperature is T . Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

A body cools from 60^@ C to 50^@ C in 10 min. Find its temperature at the end of next 10 min if the room temperature is 25^@C . Assume Newton's law of cooling holds.

A body with an initial temperature theta_(1) is allowed to cool in a surrounding which is at a constant temperature of theta_(0) (theta lt theta_(1)) Assume that Newton's law of cooling is obeyed Let k = constant The temperature of the body after time t is best experssed by .

A body cools in a surrounding which is at constant temperature of theta_(0) . Assume that it obeys Newton's law of colling. Its temperature theta is plotted against time t . Tangents are drawn to the curve at the points P(theta=theta_(t)) and Q(theta=theta_(2)) . These tangents meet the time axis at angles of phi_(2) and phi_(1) , as shown

A solid at temperature T_(1) is kept in an evacuated chamber at temperature T_(2)gtT_(1) . The rate of increase of temperature of the body is propertional to

A body cools in a surrounding of constant temperature 30^(@)C . Its heat capacity is 2J//^(@)C . Initial temperature of the body is 40^(@)C . Assume Newton's law of cooling is valid. The body cools to 36^(@)C in 10 minutes. In further 10 minutes it will cool from 36^(@)C to :

A body having mass 2 Kg cools in a surrounding of constant temperature 30^(@)C . Its heat capacity is 2J//^(@)C . Initial temperature of the body is 40^(@)C . Assume Newton's law of cooling is valid. The body cools to 36^(@)C in 10 minutes. When the body temperature has reached 36^(@)C . it is heated again so that it reaches to 40^(@)C in 10 minutes. Assume that the rate of loss of heat at 38^(@)C is the average rate of loss for the given time . The total heat required from a heater by the body is :

If a body cools down from 80^(@) C to 60^(@) C in 10 min when the temperature of the surrounding of the is 30^(@) C . Then, the temperature of the body after next 10 min will be

A body cools from 50^@C " to " 40^@C in 5 min. If the temperature of the surrounding is 20^@C , the temperature of the body after the next 5 min would be

A black body of temperature T is inside chamber of T_0 temperature initially. Sun rays are allowed to fall from a hole in the top of chamber. If the temperature of black body (T) and chamber (T_0) remains constant, then