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MHT CET Physics question

PhysicsElectromagnetic WavesMHT CET

The wave number of beam of light in air, if its frequency is Hz, will be :

Answer: (B)

Solution

λ = c/f = 3×10⁸/9×10¹⁴ = 3.33×10⁻⁷ m and wavenumber = 1/λ = 3×10⁶ m⁻¹; 3.3×10⁻⁷ is the

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Question ID VK-076971