Home
Class 12
PHYSICS
A black body, at temperature T K emits r...

A black body, at temperature T K emits radiation at the rate of 81 W/m2. It the temperature falls to 173 K. then the new rate of thermal radiation will be

A

`(81)^2 W/m^2`

B

27 W/`m^2`

C

243 W/`m^2`

D

1 W/`m^2`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • Mock Test27

    AAKASH INSTITUTE|Exercise EXAMPLE|9 Videos

  • MOTION IN A PLANE

    AAKASH INSTITUTE|Exercise Assignement section -J (Aakash Challengers Questions)|4 Videos

Similar Questions

Explore conceptually related problems

A black body, which is at a high temperature TK thermal radiation emitted at the rate of E W//m^(2) . If the temperature falls to T/4 K, the thermal radiation emitted in W//m^(2) will be

A black body at high temperature emits thermal radiations of

A black body at high temperature T K radiates energy at the rate of E W//m^(2) . When the temperature falls to (T//2) K , the radiated energy will be

A black body at a temperature of 127^(@)C raidates heat at the rate of 1cal//cm xx sec . At a temperature of 527^(@)C the rate of heat radiation from the body in (cal//cmxx sec) will be

A black body at a high temperature T radiates energy at the rate of U (in Wm^(-2) ). When the temperature falls to half (I e . (T)/(2) ) the radiated energy (in Wm^(-2) ) will be

A black body at temperature 227^(@)C radiates heat at the rate of 5 cal/ cm^(2) , at a temperature of 27^(@)C , the rate of heat radiated per unit area per unit time in cal/ cm^(2) s, is

A black body at a temperature of 227^(@)C radiates heat energy at the rate of 5 cal/cm-sec. At a temperature of 727^(@)C , the rate of heat radiated per unit area in cal/cm will be

A black body at ' 227^@ ' C radiates heat at the rate of ' 10 cal/cm^2s. At a temperature of '727^@' C the rate of heat radiated in same units will be

A black body, at a temperature of 227^@C , radiates heat at a rate of 20 cal m^(-2)s^(-1) . When its temperature is raised to 727^@C , the heat radiated by it in cal M^(-2)s^(-1) will be closest to