11.In Fraunhofer’s single slit diffraction experiment, how does semi-angular with θ of the central bright fringe depned on slit width ‘a’ ?
424 Views
12.State one use of a Polaroid.
543 Views
13.A ray of light LM incident normally on the surface AC of an isosceles right angled prism ABC (where AB = BC) emerges along PQ, parallel to LM, shwon in Figure.
What can you say about refractive index μ of the material of the prism?
3110 Views
14.State one condition for obtaining a sustained interference of light.
769 Views
Advertisement
15.State any one postulate of Huygen’s wave theory.
1079 Views
16.How can an n type semiconductor be obtained from a pure crystal of germanium?
Short Answer Type
Switch
