experience an increase in their amplitude. experience an increase in frequency. experience a decrease from transverse waves to longitudinal waves. experience a decrease in frequency.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Based on the Doppler effect, the electromagnetic waves reaching Earth from a galaxy that is moving away from Earth would be expected to
Possibilities:
- experience an increase in their amplitude.
- experience an increase in frequency.
- experience a decrease from transverse waves to longitudinal waves.
- experience a decrease in frequency.

experience a decrease in frequency.