Related InterviewSolutions

• (a) Write the necessary conditions for the phenomenon of total internal reflection to occur.(b) Write the reflection between the refractive index and critical angle for a given pair of optical media.
• (i) State the condition under which a large magnification can be achieved in an astronomical telescope.(ii) Give two reasons to explain why a reflecting telescope is preferred over a refracting telescope.
• Explain Reflection of light by spherical mirrors. 
• On what principle optical fiber does works? 
• Write the expression for the power of a combination of number of thin lenses. 
• Mention a few illustrations of total internal reflection.
• Write the conditions to have total internal reflection. 
• A glass lens of refractive index 1.5 is kept in a liquid. What must be the refractive index of the liquid so that the lens will disappear?
• What is total internal reflection?
• State the laws of reflection.