In electromagnetic waves, frequency is inversely proportional to

Fast Please. I do not understand this

1 = B

2 = A
3 and 4 = C

I can confirm that ??? was correct.

??? is correct i just got 4 out 4

Yes, C is the correct answer and it's because c = freq*wavelength. So if frequency goes up, wavelength goes down.

I got it! I talked to my teacher. Anyway thanks!

Thanks every one!!

wut?!?!?!?!?! 0-0

Oh ya choices are

A. amplitude.
B. wave speed.
C. wavelength.
D. reflection.

anyone??? Ms. Sue! Please

It is C.

It is obvious cause it is v=fλ = velocity = frequency * wavelength