The temperature of a body is increased b...

The temperature of a body is increased by `50%`. The amount of radiation emitted by it would be nearly

Increase by 400%

Decrease by 400%

Decrease by 50%

Increase by 50%

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MOTION-HEAT TRANSFER & THERMAL EXPANSION -EXERCISE - 1

The MKS unit of Stefan's constant is
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Two bodies A and B are kept in an evacuated chamber at 27^@C. The temp...
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The temperature of a body is increased by 50%. The amount of radiation...
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Four bodies of specific heats s1,s2,s3 and s4 are cooled in the same s...
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The effective area of a black body is 0.1 m^2 and its temperature is 1...
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Radius of a shere is R density is d and specific heat is s, Is is heat...
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If a body at 27^(@)C emits 0.3 watt of heat then at 627^(@)C, it will ...
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The rate of cooling of a body depends on –
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A solid sphere, a cube and a plate, all are made of same material and ...
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Consider two hot bodies B(1) and B(2) which have temperature 100^(@)"C...
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According to Newton’s law of cooling ms (d theta)/(dt)=-K(theta-theta0...
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is temperature of surroundings in K, then the value of K on the basis ...
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A body takes, 4 minutes to cool from 100^(@)C to 70^(@)C, if the room ...
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When placed in air at 30^(@)C, the temperature of a body decreases fro...
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Frequency for maximum energy radiation of ideal black body at tempertu...
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The wavelength of maximum emitted energy of a body at 700 K is 4.08 mu...
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The spectral emissive power of a black body at a temperature of 6000K ...
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Temperature of an ordinary bulb is 3000^@K. At what wave length will i...
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If for a black body the graph of change is emissive power at different...
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An iron ball is heated. The percentage increase will be the largest in...
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