Question

Calculate the wavelength, frequency and wave number of a light whose period is:- 4 * 10 ^ -8 s Please calculate in terms of SI units.

Answer 1

Answer:

Answer :-

wavelength :-

$wavelength = \frac{c}{v}$

therefore ,

$= \frac{3 \times {10}^{8} }{4 \times {10}^{ - 8} }$

$= 0.75 \times {10}^{16}$

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☆ Frequency :-

$= \frac{c}{wavelength}$

$= \frac{3 \times {10}^{8} }{0.75 \times {10}^{16} }$

$= 4 \times {10}^{ - 5}$

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wave number :-

$= \frac{1}{wavelength}$

$= \frac{1}{0.75 \times {10}^{16} }$

$= \frac{1}{.75 \times {10}^{14} }$

Answer 2

Explanation:

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