A body of area `0.8xx10^(-2) m^(2)` and mass `5xx10^(-4) kg` directly faces the sun on a clear day. The body has an emissivity of 0.8 and specific heat of `0.8 ca//kg` K. The surroundings are at `27^@C`. (solar constant`=1.4 kW//m^(2)`).
The maximum attainable temperature of the body is

A body of area 0.8xx10^-2m^2 and mass 5xx10^(-4)kg directly faces the sun on a clear day. The body has an emissivity of 0.8 and specific heat of 0.8 cal//kg K. The surroundings are at 27^@C . (solar constant =1.4 kW//m^(2) ). Q. The rate of rise of the body's temperature is nearly

A body of area 0.8xx10^-2m^2 and mass 5xx10^-4kg directly faces the sun on a clear day. The body has an emissivity of 0.8 and specific heat of 0.8 cal//kg K. The surroundings are at 27^@C . (solar constant =1.4 kW//m^(2) ). The temperature that the body would reach if it lost all its heat by radiation is

A body of area 0.8xx10^-2m^2 and mass 5xx10^-4kg directly faces the sun on a clear day. The body has an emissivity of 0.8 and specific heat of 0.8 cal//kg K. The surroundings are at 27^@C . (solar constant =1.4 kW//m^(2) ). The temperature that the body would reach if it lost all its heat by radiation is

A body has -0.8 xx 10^(-18) C charge. What is the number of excess electrons in the body?

A hot body at 800^@C is radiating 500 J of energy per minute. Calculate the surface area of the body if emissivity is 0.23 and Stefan's constant is 5.67 xx 10^(-8) Wm^(-2) K^(.-4) .

Calculate the amount of force required to produce an acceleration of 4 m//s^(2) in a body of mass 0.8 kg.

A black body of emissive power 81 J/ m^(2) s when it is at 300 K and ordinary body of emissivity 0.8 when it is at 500 K. what is the emissive power of an ordinary body?

A black body of emissive power 81 J/ m^(2) s when it is at 300 K and ordinary body of emissivity 0.8 when it is at 500 K. what is the emissive power of an ordinary body?