A monochromatic source emitting light of wavelength, 600nm, has a power output of 66W. Caculate the number of photons emitted by this source in 2minuts. Use `h=6.6xx10(-34)Js`.

A monochromatic source emitting light of wavelength 600 nm has a power output of 66 W. Calculate the number of photons emitted by this source in 2 minutes.

A monochromatic source emitting light of wavelength 600 nm has a power output of 66 W. Calculate the number of photons emitted by this source in 2 minutes.

A monochromatic source, emitting light of wavelength, 600 nm, has a power output of 66W. Calculate the number of photons emitted by this source is 2 minutes.

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 .

A monochromatic source emits light of wavelength 550 nm is emitted by a source . Find the number of photons emitted by the source in 90 seconds if power of source is 60 W.

A 100 W point source emits monochromatic light of wavelength 6000 A Calculate the total number of photons emitted by the source per second.

A 100 W point source emits monochromatic light of wavelength 6000 A Calculate the total number of photons emitted by the source per second.

Photons of wavelength 600 nm are emitted from a 60 watt lamp. What is the number of photons emitted per second ? Take h = 6.6 xx 10^-34 Js

A monochromatic source of light emits light of wavelength 198 nm. Calculate : (i) energy of each photon, (ii) Momentum of the photon.

A 150 W hollow-cathode lamp of an atomic absorption spectrophotometer emits monochromatic light of wavelength 553.5 nm. Calculate the number of photons emitted in one minute (150 watts 150 Js^(-1) ).