As the temperature of an object increases, the wavelength of the brightest light emitted

A. increases

B. decreases

C. remains the same

D. depends on the composition of the body

E. depends on the size of the body

F. not enough information to answer

option (B) decreases

Explanation:

According to the Wein's displacement law, the minimum wavelength of the radiated emission is inversely proportional to the absolute temperature of the body which emits radiation.

Where, T is the absolute temperature of the body and λm is the minimum wavelength of heat radiated.

Here, as the temperature increases, the wavelength decreases.

uranium fissions/breaks up giving out energy and neutrons

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000