Modern Physics Quiz Part I
Which phenomenon is best explained by the particle nature of light?
- The Doppler Effect
- Polarization
- The photoelectric effect
- interference
According to the quantum theory of light, the energy of light is carried in discrete units called
- alpha particles
- photoelectrons
- protons
- photons
If the wave properties of a particle are difficult to observe, it is probably due to the particle's
- small size
- large mass
- low momentum
- high charge
If an orbiting electron falls to a lower orbit, the total energy of that atom will
- remain the same
- increase
- decrease
The energy of a photon varies directly with its
- frequency
- wavelength
- speed
- rest mass
Blue light has a frequency of approximately 6.0 x 10^14 hertz. A photon of blue light will have an energy of
- 5.0 x 10^ -7 J
- 4.0 x 10^ -19 J
- 1.1 x 10^ -48 J
- 6.0 x 10^ -34 J
Which color of light has the greatest energy per photon?
- blue
- green
- violet
- red