It would help if you managed to capture the whole question and all the answer choices
in the picture. Fortunately, you caught the whole question in the picture of #32.
Tools you need in order to answer this one:
-- When the frequency of a wave goes up, the wavelength gets shorter.
(That's why the high numbers on a radio receiver are called 'short-wave'.)
-- Photons with higher frequency carry more energy.
(That's why x-rays and gamma rays are dangerous to our delicate human tissues.)
Do you remember hearing these things in class ?
Anyway, as the frequency of the photons increases, their
energy increases, and their wavelengths get shorter.
I hope that's one of the choices that escaped getting caught in the photo.
