EASY
11th Maharashtra Board
IMPORTANT
Earn 100

Explain mirage as an illustration of refraction.

Important Questions on Optics

EASY
11th Maharashtra Board
IMPORTANT
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
Describe construction and working of optical fibre. What are the advantages of optical fibres communication over electronic communication?
MEDIUM
11th Maharashtra Board
IMPORTANT
Why is the prism binoculars preferred over traditional binoculars? Describe its working in brief.
MEDIUM
11th Maharashtra Board
IMPORTANT
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
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
What are different types of dispersions of light? Why do they occur?
MEDIUM
11th Maharashtra Board
IMPORTANT
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
Explain and define the dispersive power of a transparent material. Obtain its expressions in terms of angles of deviation and refractive indices.