The monochromatic light of frequency 12 × 1014 Hz is produced by a laser. The power emitted
is 3 ×10–3 W. (3)
(a) What is a photon?
(b) Find the energy of a photon produced by the laser.
(c) How many photons per second are emitted by the laser?
is 3 ×10–3 W. (3)
(a) What is a photon?
(b) Find the energy of a photon produced by the laser.
(c) How many photons per second are emitted by the laser?
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Answer:
dual nature of radiation and matter.
givern. V=6×10+14Hz
power emitted by light p=2×10−3w
energy of one photon is given by
energy =hv→i
Number of photons emitted per second =enwrgy of one photonpower
=6.63×10−34×6×10142×10−3
⇒ 5.03×1015 → ii