Answer:
sorry but i cant
Explanation:
hope this is correct
Answer : It’s C.
Cccccccccccccccccccccccccccccccccccccccc
C. Cu undergoes reduction.
If the frequency is doubled, the wavelength is only half as long.
Wave speed equals frequency*wavelength. So doubling the frequency must halve the wavelength in order for wave speed to remain the same.