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In an experiment to measure the wavelength
of light in air, two slits are illuminated with
white light and their images are obtained on a
screen. For best results:
5
A
the slit to screen distance should be at
least 3.00 m.
the light used can be a mixture of
coloured light.
the light used should be obtained
from a LASER source;
the slit width should be made smaller
than the wavelength of light.
D

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