The frequency range of visible light is from
3.75 X 10^14 Hz to 7.5 x 10^14 Hz. Calculate its
wavelength range. Take speed of light = 3 x 10^8 ms^-1.
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Explanation:
Given, (In air)
Velocity V=340m/s
Frequency f=20,000Hz
Wavelegth λ=?
V=f.λ
λ=FV=20,000340=0.017Hz
Also, Given (in Water)
Velocity, V=1480m/s
Frequencyf=20,000Hz
wavelength, λ=?
V=F.λ
λ=FV=20,0001480=0.074Hz
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