Question

The value of Planck's Constant 6.63* 10^-34Js. The speed of light is3*10^17nm/s. Which value is closest to the wavelength in Nano metre
of a quantum of light with frequency of 6*10^15/s?

Answer 1

using,
velocity=frequency×wavelength
3×10^17=6×10^15 × wavelength
therefore
wavelength=0.5×10^2
wavelength=50nm.
so your answer is 50Nanometre.
“ hope it helps you."

Answer 2

50 Nanometer is the value of a quantum of light with a frequency of 6*10^15/s closest to the wavelength.

Explanation:

As we know,

Velocity = frequency × wavelength

Constant h =  6.63* 10^-34Js

c(speed of light) = 3*10^17nm/s

Frequency(v) = 6*10^15/s

Wavelength = c/v

∵ wavelength=0.5×10^2

= 50 Nanometer

so your answer is 50Nanometre.

Learn more: quantum of light

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