ICSE Class 10 Physics 2018 Solved Paper

Question : 8 of 78

Marks: +1, -0

Which of the above wavelengths has a higher frequency?

Solution:

Wavelength

4000 Å

has a higher frequency. Since,

f=v \/ λ

, If

v

is constant, then

f ∝ \;{1}/{λ}

. So less is the wavelength, more is the frequency.

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