There are two sources of light, each emitting with a power of `100W`. One emits X-rays of wavelength `1nm` and the other visible light at `500nm`. Find the ratio of number of photons of X-rays to the photons of visible light of the given wavelength?

There are two source of light, each emitting with a power fo 100W , One emits X -rays of wavelength 1nm and the other visible light at 5400nm . Find the ratio of number of photons of X-rays to the photos of visible light of the given wavelength?

What is the ratio of the energy of an X ray photon of wavelength 1 Å to that of visible light of wavelength 5000 Å ?

The ratio of the energy of an X - ray photon of wavelength 1 Å to that of visible light of wavelength 5000 Å is

Two source of light emit X - rays of wavelenght 1 nm and visible light of wavelength 500 nm respectively . Both the source emit light of the same power 200 W. The ratio of the number density of photons of X - rays to the number density of photons of the visible light of the given wavelengths

Visible light has wavelengths in the range of 400 nm to 780nm. Calculate the range of energy of the photons of visible light.

X-rays are electromagnetic radiations of wavelength greater than that of visible light.

Find the number of photons emitted per second by a 25 watt source of monochromatic light of wavelength 6000Å .

A monochromatic source emits light of wavelength 500 nm and has a power output of 25 W. Find the number of photons emitted by this source in 5 minutes .

Calculate the momentum of a photon of light of wavelength 500nm .