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Wavelength of light of frequency 100 Hz

1. 2 × 10⁶ m
2. 3 × 10⁶ m
3. 4 × 10⁶ m
4. 5 × 10⁶ m

Correct answer: 3 × 10⁶ m

Solution

The wavelength of light can be calculated using the formula λ = c / f, where c is the speed of light (3 × 10⁸ m/s) and f is the frequency (100 Hz). Substituting the values, λ = (3 × 10⁸) / (100) = 3 × 10⁶ m.

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