Home
Class 11
PHYSICS
A black body of temperature T is inside ...

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

A

Black body will absorb radiation.

B

Black body will absorb less radiation.

C

Black body will emit more energy.

D

Black body will emit energy equal to energy absorbed by it.

Text Solution

Verified by Experts

The correct Answer is:
A, D
Since the sun rays fall on the black body, it will absorb radiations and since its temperature is constant, it will emit radiations. The temperature is will remain same only when energy emitted is equal to energy absorbed.
Promotional Banner

Topper's Solved these Questions

  • ARCHIVES 1 VOLUME 6

    CENGAGE PHYSICS ENGLISH|Exercise Assertion-Reasoning|1 Videos

  • ARCHIVES 1 VOLUME 6

    CENGAGE PHYSICS ENGLISH|Exercise Comprehension|3 Videos

  • ARCHIVES 1 VOLUME 6

    CENGAGE PHYSICS ENGLISH|Exercise Single Correct|54 Videos

  • ARCHIVES 2 VOLUME 6

    CENGAGE PHYSICS ENGLISH|Exercise Integer|4 Videos

Similar Questions

Explore conceptually related problems

A black body of temperature T is inside a chamber of temperature T_(0) Now the closed chamber is slightly opened to Sun that temeperature of black body (T) and chamber (T_(0)) remain constant .

Calculate the temperature of the black body from given graph.

In a dark room with ambient temperature T_(0) , a black body is kept at a temperature T . Keeping the temperature of the black body constant (at T ), sunrays are allowed to fall on the black body through a hole in the roof of the dark room. Assuming that there is no change in the ambient temperature of the room, which of the following statements (s) is/are correct ?

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 black body, at temperature T K emits radiation at the rate of 81 W/m2. It the temperature falls to t=T/3 K. then the new rate of thermal radiation will be

The temperature of an spherical isolated black body falls from T_(1) and T_(2) in time t them time t is

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

If a piece of metal is heated to temperature theta and the allowed to cool in a room which is at temperature theta_0 , the graph between the temperature T of the metal and time t will be closet to

A solid copper sphere of density rho , specific heat c and radius r is at temperature T_1 . It is suspended inside a chamber whose walls are at temperature 0K . What is the time required for the temperature of sphere to drop to T_2 ? Take the emmissivity of the sphere to be equal to e.

If temperature of ideal black body is decreased from T to T/2 than find out percentage loss in emissive rate