A packet, or quantum of light or any other type of electromagnetic radiation is called
a) an energy level.
b) a photon.
c) an excited state.
d) a discrete bundle.
Question 2
A 4.0-kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vertical wall. The particle rebounds with a speed of 3.0 m/s. What is the magnitude of the impulse delivered to the particle?
a. 24 N/s
b. 32 N/s
c. 40 N/s
d. 30 N/s
e. 8.0 N/s