EASY
11th Maharashtra Board
IMPORTANT
Earn 100

Explain mirage as an illustration of refraction.

Important Questions on Optics

EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
Under what conditions is total internal reflection possible? Explain it with a suitable example. Define critical angle of incidence and obtain an expression for it. 
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
Describe construction and working of optical fibre. What are the advantages of optical fibres communication over electronic communication?
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
Why is the prism binoculars preferred over traditional binoculars? Describe its working in brief.
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
A spherical surface separates two transparent media. Derive the expression that relates object and image distances with the radius of curvature for a point object. Clearly, state the assumptions, if any.
HARD
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
Derive the len's maker equation. Why is it called so? Under which conditions focal length f and radii of curvature R are numerically equal for a lens?
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
What are different types of dispersions of light? Why do they occur?
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
Define angular dispersion for a prism. Obtain its expression for a thin prism. Relate it with the refractive indices of the material of the prism for corresponding colours.
HARD
11th Maharashtra Board
IMPORTANT
Physics>Chapter 9 - Optics>Exercises>Q 2
Explain and define the dispersive power of a transparent material. Obtain its expressions in terms of angles of deviation and refractive indices.