(a) State Heisenberg's uncertainty principle
(b) mention two phenomena that can only be explained in terms of the particulate nature of light
Verified Correct Answer: .
Physical Principles & Numerical Solution
(a) Heisenberg's uncertainty principle states that there is always an uncertainty in any attempt to measure the position and momentum of a particle simultaneously
(b) Phenomena explained in terms of particle nature of light are:
- photoelectricity,
- black body radiation,
- compton effect
Source: Myschool Past Questions Archive (Record #54091)