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प्रश्न
Solve the numerical problem.
In an EM wave, the electric field oscillates sinusoidally at a frequency of 2 × 1010 Hz. What is the wavelength of the wave?
उत्तर
Given: ν = 2 × 1010 Hz, c = 3 × 108 m
To find: Wavelength (λ)
Formula: c = νλ
Calculation: From formula,
λ = `"c"/λ=(3xx10^8)/(2xx10^10)` = 1.5 × 10−2 m
The wavelength of the wave 1.5 × 10–2 m.
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