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Question

The wavelength of light that has a frequency of 1.20×1013s-1 is __________ m


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Solution

Step1: Given that

Frequency of the light = f = 1.20×1013s-1

Speed of light = c = 3×108m/s

Step2: Formula used -

c=f×λ

Where,

c = velocity of light

f = frequency of light

λ= wavelength of the light

Step3: Finding the wavelength of the light

c=f×λλ=cfλ=3×1081.2×1013λ=2.5×10-5m

Hence, The wavelength of the given light is 2.5×10-5m


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