Question

question 22 (1 point)
which of the following statements regarding the quantum theory of light is correct?
light can only travel as a wave
light is composed of discrete particles with mass
light travels as waves with mass
light is composed of discrete mass - less particles
light is neither particle - like or wave - like

Explanation:

According to the quantum theory of light, light has a dual nature (wave - particle duality). It is composed of discrete particles called photons. Photons are mass - less.

• The first option is incorrect because light has both wave - like and particle - like properties.
• The second option is wrong as photons (particles of light) are mass - less.
• The third option is incorrect because light waves (as in wave - like aspect) do not have mass.
• The fifth option is wrong because of the wave - particle duality of light.

Answer:

Light is composed of discrete mass - less particles.