[" A "600W" mercury lamp emits monocliromatic radiation of wavelength "331.3mm" .How many "],[" photons are emitted from the lamp per second? "]

A 600 W mercury lamp emits monochromatic radiation of wavelength 331.3 nm. How many photons are emitted from the lamp per second?

A 600 W mercury lamp emits monochromatic radiation of wavelength 331.3 nm. How many photons are emitted from the lamp per second? (h =6.626 xx10^(-34)" Js, velocity of light "=3xx10^(8)ms^(-1))

A 600 W mercury lamp emits monochromatic radiation of wave length 313.3 nm. How many photons are emitted from the lamp per second ? ( h = 6.626 xx 10^(-34) Js , velocity of light = 3xx 10^(8) ms^(-1) )

A radio transmitter radiates 1 kW power at a wavelength 198.6 m . How many photons does it emit per second ?

A bulb lamp emits light of mean wavelength of 4500A . The lamp is rated at 150W and 8% of the energy appears as emitted light. How many photons are emitted by the lamp per second?