Electromagnetic energy is transmitted in discrete packets called photons. what happens to the energy of a photon as the frequency of the electromagnetic radiation increases?

Ray 2 should cross through the focal point on the right side of the lens

This question is incomplete and not physics but i'm  willing to if you can give a better question

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.