Physics
The following diagram shows a 60°, 30°, 90° glass prism of critical angle 42°. Copy the diagram and complete the path of incident ray AB emerging out of the prism marking the angle of incidence on each surface.
Related Questions
Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below.
Study the two sound waves and compare their:
(i) Amplitudes
(ii) Wavelengths
(i) State the relation between the critical angle and the absolute refractive index of a medium.
(ii) Which colour of light has a higher critical angle? Red light or Green light.
(i) Define scattering.
(ii) The smoke from a fire looks white.
Which of the following statements is true?
- Molecules of the smoke are bigger than the wavelength of light.
- Molecules of the smoke are smaller than the wavelength of light.
You have three resistors of values 2 Ω, 3 Ω and 5 Ω. How will you join them so that the total resistance is more than 7 Ω?
(i) Draw a diagram for the arrangement.
(ii) Calculate the equivalent resistance.