Home
Class 12
PHYSICS
A spherical black body with a radius of ...

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

3600W

B

450 W

C

900W

D

1800W

Text Solution

Verified by Experts

Promotional Banner

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 radius 12 cm radiates 450 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 640 w power at 500 K. If the radius is halved and the temperature doubled, the power radiated in watts would be

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

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

A black metal foil is warmed by radiation from a small sphere at temperature T and at a distance d it is found that the power received by the foil is P If both the temperature and the distance are doubled the power received by the foil 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

A black body at a temperature of 227^(@)C radiates heat energy at the rate of 5 cal/ cm^(2) -sec. At a temperature of 727^(@)C , the rate of heat radiated per unit area in cal/ cm^(2) -sec will be

A black body radiates energy at the rate of E W//m at a high temperature TK . When the temperature is reduced to (T)/(2)K , the radiant energy will b

A black body emits radiations of maximum intensity at a wavelength of Å 5000 , when the temperature of the body is 1227^(@)C . If the temperature of the body is increased by 1000^(@)C , the maximum intensity of emitted radiation would be observed at