Questions
A black body radiates power P and maximum energy is radiated by it around a wavelength . The temperature of the black body is now changed such that it radiates maximum energy around the wavelength .The power radiated by it now is
detailed solution
Correct option is A
λmT= constant ⇒T=43T0Since, P∝T4(from Stefan’s Law)⇒Pnew =25681PTalk to our academic expert!
Similar Questions
A small object is placed at the centre of a large evacuated hollow spherical container. Assume that the container is maintained at 0 K. At time t = 0, the temperature of the object is 200 K. The temperature of the object becomes 100 K at t = t1 and 50 K at t = t2. Assume the object and the container to be ideal black bodies. The heat capacity of the object does not depend on temperature. The ratio (t2 / t1) is _____ .
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