(a) Differentiate between interference and polarisation as applied to waves.
(b) Mention two uses of polaroids
Verified Correct Answer: .
Physical Principles & Numerical Solution
a)(i) Interference occurs in all kinds of waves i.e. longitudinal or transverse, while polarisation occurs only in transverse waves.
(ii) - In sun glasses to reduce the intensity of light.
- To produce polarised light.
- To produce three dimensional pictures.
Source: Myschool Past Questions Archive (Record #54140)