Questions
If the source of light used in a Young’s double slit experiment is changed from red to violet.
a
The fringes will become brighter
b
The intensity of minima will increase
c
Consecutive fringe lines will come closer
d
The central bright fringe will become a dark fringe.
detailed solution
Correct option is C
Wavelength of Violet light is smaller than Red light. Also, fringe width is directly proportional to wavelength.Thus, Fringe width decreases as wavelength decreases.Talk to our academic expert!
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