Which electromagnetic wave travels the fastest in water, or any other medium except air? Give reasons.

Asked by saibaba1069 | 2nd Mar, 2021, 11:03: PM

Expert Answer:

X-rays and γ-rays travel faster in water than any other electromagntic wave. X-rays and γ-rays have higher frequencies . 
Typical frequency of x-ray 1018 Hz . Typical frequency of γ-ray is 1021 Hz .
Hence x-ray and γ-ray photons have very high energy and travels faster than other types of electromagnetic waves

Answered by Thiyagarajan K | 3rd Mar, 2021, 09:42: AM

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