Question

Problem 2.4
The wavelength range of the visible
spectrum extends from violet (400 nm)
to red (750 nm). Express these
wavelengths in frequencies (Hz).
(lnm = 10-9 m)​

Answer 1

Answer:

violet=750THz to red=400THz(approx)

Explanation:

violet

wavelength=400nm

=4×10^-9 m

frequency=speed of light/wavelength

=3×10^8/4×10^-7

=3/4×10^15

=0.75×10^15 Hz

=7.5×10^14 Hz

=750THz

Similarly we can find same for red too.

Answer 2

◇◇ Refer to the attachment above for your answer ◇◇

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