Q

A transmitting station emits waves of frequency 71 × 10⁴ Hz at a speed of 3 × 10⁸ m/s. What is their wavelength?

RRB ALP & Technician 17/08/2018 (Shift-I) 2018
✓ Answer: C 422.5 m
λ = v/f = (3 × 10⁸)/(71 × 10⁴) ≈ 422.5 m.
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