Author Question: Applying E = hf to photon emission from an atom, the symbol E represents the energy A) of the ... (Read 18 times)

yoooooman · **on:** Jul 29, 2018

Applying E = hf to photon emission from an atom, the symbol E represents the energy

A) of the emitted photon.
B) difference between atomic energy levels producing the photon.
C) both of these
D) neither of these

Question 2

Why are planets and stars approximately spherical, whereas asteroids and meteorites are shaped like ordinary rocks?

What will be an ideal response?

yahahah24021 · **Reply #1 on:** Jul 29, 2018

Answer to Question 1

Answer: C

Answer to Question 2

In large bodies, the gravitational forces are much larger than the elastic forces, so the body takes on a spherical shape (except for a slight oblateness due to rotation,) whereas in small bodies the elastic forces are much larger, so the bodies retain their shape.