The quantum of light energy is called a:

According to Einstein's mass-energy equivalence, E equals:

Planck's constant relates the energy of a photon to its:

Einstein's theory of relativity introduced the concept of:

The Bohr model of the atom proposed that electrons move in:

The photoelectric effect demonstrates that light behaves as a:

X-rays were discovered by:

The photoelectric effect was explained by:

The atomic nucleus was discovered through experiments conducted by:

Which of the following is a semiconductor material?

The electron was discovered by: