A laser operates at a wavelength of . The number of photons that will be emitted per second is :[Given Planck's constant ,speed of light ]
Step 1: Given Data
Power of the laser
The wavelength of the laser
Planck's constant
Speed of light
Time given
Step 2: Establish the Formula
We know that energy is given as,
Power is given as,
Step 3: Calculate number of Photons
Upon substituting the values we get,
Hence, the correct answer is option (A).