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Question

Physics Question on Electromagnetic waves

Wavelength of light of frequency 100 Hz

A

4×106m4 \times {10}^6 m

B

3×106m3 \times {10}^6 m

C

2×106m2 \times {10}^6 m

D

5×10−5m5 \times {10}^{-5} m

Answer

3×106m3 \times {10}^6 m

Explanation

Solution

λ=3×108100Hz=3×106m\lambda = \frac{ 3 \times {10}^8}{100 H_z } = 3 \times {10}^6 m