8.
Which of the following is true about all electromagnetic waves in a vacuum? (1 point)
A.They all carry the same energy.
B.They all travel at the same speed.
C.They all have the same frequency.
D.The all have the same wavelength.***
Which of the following is true about all electromagnetic waves in a vacuum? (1 point)
A.They all carry the same energy.
B.They all travel at the same speed.
C.They all have the same frequency.
D.The all have the same wavelength.***