Question

an ultraviolet radiation has a wavelength of 300 A if velocity of wave is 3×10^8 m/s calculate frequency and time period
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Answer 1

Frequency, f = 10^(16) Hz

Time Period, T = 10^(–16) s

Given,

Wavelength, lambda = 300 Armstrong's = 300 × 10^(–10) m

Velocity, v = 3 × 10^8 m/s

Therefore to find frequency

we know that

f = v/lambda

f = 3 × 10^(8) / 300 × 10^(–10)

f = 3 × 10^(8) / 3 × 10^(-8)

f = 10^(16) Hz

For time period we have

T = 1 / f

T = 1 / 10^(16)

T = 10^(–16) s

Hence Solved

Thankyou

Solved by,

Aaditya Singh