Question

The relationship between energy of a photon of light and its frequency is given by
a) de-Broglie dual nature of light b) Bohr's model
c) Rutherford's atomic model
d) Planck's quantum theory
TL​

Answer 1

the answer is 108 because the number is 200

Answer 2

There's a theory in quantum mechanics which relate the photon's energy and its frequency is nothing but the (d) Planck's quantum theory.

Energy-Frequency Relationship

• Each particle needs energy to excite from one energy level to next higher energy level.
• It is also associated with the frequency.
• Planck's made a relationship between energy and frequency  such that the energy is directly proportional to the frequency and it is given as,
• E ∝ ν
• h can be written as proportionality constant and the energy can be given as,
• E = hν
• Thus the correct option is (D) Planck's quantum theory.