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Physics
Intensity of light is
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Q. Intensity of light is
Dual Nature of Radiation and Matter
A
number of photons falling over an area is $1 s$
13%
B
number of photons falling over an area
18%
C
number of photons falling over unit area in unit time
47%
D
number of photons emitted by source in $1 s$
22%
Solution:
Intensity of light of a given frequency is determined by the number of energy quanta (photon) per unit area per unit time.