Two spheres of the same material have ra...

Two spheres of the same material have radii 1m and 4m and temperatures 4000K and 2000K respectively. The ratio of the energy radiated per second by the first sphere to that by the second is

A

`1:1`

B

`16:1`

C

`4:1`

D

`1:9`

Text Solution

Verified by Experts

The correct Answer is:

A

Topper's Solved these Questions

NTA NEET SET 106
NTA MOCK TESTS|Exercise PHYSICS|45 Videos
NTA NEET SET 108
NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Two spheres of the same materical have radii 1m and 4m and temperature 400K and 2000K respectively The ratio of the energy radiated per second by the first sphere to that by the second is .

Two spheres of the same material have radii 1m and 4m and temperatures 4000K,respectively. The ratio of the energy radiated per second by the first sphere to that by the second is

Two spheres of the same material have radii 1m and 4m and temperatures 4000K and 2000K respectively. The energy radiated per second by the first sphere is greater than that by the second.

Two spheres of the same materical have radii 1m and 4m nad temperature 4000K and 2000K respectively The energy radiated per second by the first sphere is .

Two spheres of the same material have radii 1m and 4m and temperature 4000Kand 2000K respectively.The energy radiated per second by the first sphere is:

Two spheres of same material have radius 1 m and 4 m and temperature 4000 K and 2000 K respectively. The energy radiated per second by the first sphere is

Two spheres of same material have radii 1m and 2m are at temperature of 2000K and 1000K respectively.The ratio of energy radiated in unit time is

Two spheres of the same material having radii r and 4r and temperature 2T_(0) and T_(0) respectively. The ratio of rate of radiation of energy by the sphere is

Two spherre of the same material and radii 4 m and 1m respectively are at temperature 1000 K and 2000 K respectively. The ratio of energies radiated by them per second is

NTA MOCK TESTS-NTA NEET SET 107-PHYSICS

Consider an expanding sphere of instantaneous radius ? whose total mas...
Text Solution
|
An ideal gas at 27^(@)C is compressed adiabatically to 8//27 of its or...
Text Solution
|
Two spheres of the same material have radii 1m and 4m and temperatures...
Text Solution
|
The magnetic dipole moment of current loop is independent of
Text Solution
|
A long solenoid carrying a current produces a magnetic field B alon...
Text Solution
|
The position x of a particle varies with time t as x=at^(2)-bt^(3). Th...
Text Solution
|
Ship A is sailing towards north-east with velocity vecr=30hati+50hatJ ...
Text Solution
|
A ball of mass (m) 0.5 kg is attached to the end of a string having le...
Text Solution
|
A mass m moving horizontal (along the x-axis) with velocity v collides...
Text Solution
|
A nucleus disintegrated into two nucleus which have their velocities i...
Text Solution
|
A radioactive nucleus A with a half life T, decays into a nucleus B. A...
Text Solution
|
A particle of mass (m) is executing oscillations about the origin on t...
Text Solution
|
The shortest distance travelled by a particle executing SHM from mean ...
Text Solution
|
If the directions of electric and magnetic field vectors of a plane el...
Text Solution
|
The frequencies of X-rays, gamma-rays and ultraviolet rays are respect...
Text Solution
|
A capillary tube of the radius 0.5 mm is immersed in a beaker of mercu...
Text Solution
|
Water is flowing through a channel that is 12 m wide with a speed of 0...
Text Solution
|
A ray of light is incident on the plane mirror at rest. The mirr start...
Text Solution
|
A beam of parallel rays is brought to focus by a planoconvex lens. A t...
Text Solution
|
By keeping moment of inertia of a body constant, if we double the time...
Text Solution
|