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An x-ray with a wavelength of 3.5 × 10^-9 m travels with a speed of 3.0 × 10^8 m/s. What is the frequency of this electromagnetic wave? A. 9.52 × 10^-1 Hz B. 8.57 × 10^16 Hz C. …

An x-ray with a wavelength of 3.5 × 10^-9 m travels with a speed of 3.0 × 10^8 m/s. What is the frequency of this electromagnetic wave? A. 9.52 × 10^-1 Hz B. 8.57 × 10^16 Hz C. …
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An x-ray with a wavelength of 3.5 × 10^-9 m travels with a speed of 3.0 × 10^8 m/s. What is the frequency of this electromagnetic wave?

A. 9.52 × 10^-1 Hz
B. 8.57 × 10^16 Hz
C. 1.17 × 10^-17 Hz
D. 1.05 Hz

User Konstantin Milyutin
by
8.5k points

1 Answer

3 votes
frequency= speed/ wavelength
f= 3.0 × 10^8 m/s/ 3.5 × 10^-9 m
=8.57x10^16
The answer is letter B. 8.57 × 10^16 Hz.
User Ed Carrel
by
8.2k points
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