Umme posted an Question
August 12, 2020 • 01:21 am 30 points
  • IIT JAM
  • Physics (PH)

Consider the light beam corning form a imw he- ne laser source. how many photons are there in i meter length of the beam?

Consider the light beam corning form a ImW He- Ne laser source. How many photons are there in I meter length of the beam?

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    Ravi prakash yadav best-answer

    see the attachment. no of photons emitted per second is known to us. Now,no of photons in 1m length of beam=(3.18×10^15×1)/3×10^8=10600000

    cropped4334779540762938981.jpg
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    can you explain why you divide by speed of light

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