Physics Light and Optics MCQs
11. Question
A thin flims having thickness t << λ is seen in white light. It will appear
Answer
12. Question
The diameter of dark rings in Newtons rings is
Answer
13. Question
In the Fresnel’s Biprism experiment, the two Coherent sources are obtained by
Answer
14. Question
When a light wave suffers reflection at the interface between air and glass medium, the change of phase of the reflected wave in air medium is given as
Answer
15. Question
Two slits illuminated with red light of wavelength 650 nm have a sepration of 1mm. The interference frings are observed on a sceen at 1m from the slits. The distance between the third dark fringe and the fifth bright fringe will be:
Answer