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Question

The longest and the shortest wavelengths (in micron) for red and violet light are respectively:

A
$$0.4, 0.7$$
B
$$0.7, 0.9$$
C
$$0.7, 0.9$$
D
$$0.3, 0.6$$
Solution
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Correct option is B. $$0.4, 0.7$$
VIBGYOR is the visible range of light starting from violet and ending to red colored light. Among all these violet light has the shortest wavelength & red light has the longest wavelength.
for red light:- $$0.7$$ micron
for violet light: - $$0.4$$ micron

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