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When a radio telescope observes a region of space between two stars, it detects electromagnetic radiation that has a wavelength of 0.21 m. This radiation was emitted by hydrogen atoms in the gas and dust
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When a radio telescope observes a region of space between two stars, it detects electromagnetic radiation that has a wavelength of 0.21 m. This radiation was emitted by hydrogen atoms in the gas and dust located in that region.

Required:
What is the frequency of this radiation?

User Ripta Pasay
by
5.8k points

1 Answer

1 vote

Answer:

14.3 x 10^8Hz

Step-by-step explanation:

Using

Frequency= speed of light /wavelength

Then substituting

3*10^8m/s / 0.21m

= 14.3 x10^8 Hz

User Sergey
by
4.7k points
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