Dawn of modern physics

In the photoelectric effect, the maximum kinetic energy of emitted electrons depends on the:

• 1 Frequency of light
• 2 Area of metal
• 3 Time of exposure
• 4 Intensity of light

The energy of a photon is given by:

• 1 h f
• 2 h f2
• 3 h / f
• 4 f / h

de Broglie wavelength is:

• 1 p / h
• 2 h / p
• 3 h / E
• 4 h p

Compton scattering shows that light behaves as:

• 1 Particles
• 2 Only waves
• 3 Neutral rays
• 4 Sound

Einstein's famous mass energy relation is:

• 1 E = m c
• 2 E = m c2
• 3 E = m2 c
• 4 E = c / m