A spherical black body with a radius of ...

A spherical black body with a radius of 20 cm radiates 440 W power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be

A

225

B

450

C

980

D

1760

Text Solution

Verified by Experts

The correct Answer is:

D

Topper's Solved these Questions

KINETIC THEORY OF GASES AND RADIATION
TARGET PUBLICATION|Exercise Competitive thinking|187 Videos
KINETIC THEORY OF GASES AND RADIATION
TARGET PUBLICATION|Exercise Evaluation test|18 Videos
KINETIC THEORY OF GASES AND RADIATION
TARGET PUBLICATION|Exercise Evaluation test|18 Videos
INTERFERENCE AND DIFFRACTION
TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos
MAGNETIC EFFECT OF ELECTRIC CURRENT
TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos

Similar Questions

Explore conceptually related problems

A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be (a)225 (b)450 (c) 900 (d)1800

A spherical black body with a radius of 12cm radiates 450W power at 500K. If the radius were halved and the temperature doubled, the power radiated in watt would be

A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be

A spherical black body with radius 12 cm radiates 640 w power at 500 K. If the radius is halved and the temperature doubled, the power radiated in watts would be

A spherical black body with radius 12 cm radiates 450 W power at 500 K. If the radius is halved and temperature is doubled, the power radiated in watt would be

A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. What would be the power of radiation if radius were to be halved and the temperature is doubled ?

a spherical body of radius 10cm radiates 300 W at 227°C . If the radius is doubled and temperature is remain same, the power radiated will be

The total radiative power emitted by spherical blackbody with radius R and temperature T is P. If the radius if doubled and the temperature is halved then the radiative power will be -

A spherical black body of radius n radiates power p and its rate of cooling is R. then.

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -critical thinking

If the temperature of a hot body is increased by 50%, then the increas...
Text Solution
|
The temperatures of two bodies A and B are 727^(@)C and 127^(@)C . Th...
Text Solution
|
A spherical black body with a radius of 20 cm radiates 440 W power at ...
Text Solution
|
A body having a surface area of 50cm^2 radiates 300J of energy per min...
Text Solution
|
At 127^(@)C radiated energy is 2.7 xx 10^(-3) J//s. At what temperatur...
Text Solution
|
The rate of cooling at 600 K, if surrounding temperature is 300 K is R...
Text Solution
|
Two solid spheres of radii R(1) and R(2) are made of the same material...
Text Solution
|
A black body radiates 6 J//cm^2s when its temperature is 127 °C. How m...
Text Solution
|
The ratio of masses of two metal spheres A and B is 8 : I. If their te...
Text Solution
|
A hot liquid is kept in a big room. The logarithm of the numerical val...
Text Solution
|
Rate of cooling of a body is 0 .2° C/min, when excess temperature is 2...
Text Solution
|
A body cools at the rate of 0.75 °C/s, when it is 50 °C above the surr...
Text Solution
|
A body cools at the rate of 0.75 °C/s, when it is 50 °C above the surr...
Text Solution
|
A body takes 5 minutes for cooling from 50^(@)C to 40^(@)C Its temp...
Text Solution
|
Consider two hot bodies B(1) and B(2) which have temperature 100^(@)"C...
Text Solution
|
A body in laboratory takes 4 minutes to cool from 6 1 °C to 59 °C. If ...
Text Solution
|
A pan filled with hot food cools from 50 °C to 49.9 °C in 5 s. If it c...
Text Solution
|
A metal ball cools from 64^(@)C to 50^(@)C in 10 minutes and to 42^(@)...
Text Solution
|
A cup of tea cools from 80^(@)C to 60^(@)C in one minute. The ambient ...
Text Solution
|
The temperature of a body falls from 50^(@)C to 40^(@)C in 10 minute...
Text Solution
|