Ray Optics Test...

what is the time taken in seconds to cross a glass plate of thickness 6 mm and μ = 2.0 by light ?

Which of the following diagrams shows correctly the dispersion of white light by a prism ?

Assertion : Focal length of a lens for red colour is smaller than its focal length for violet colour
Reason : is because n_r > n_v

In which of the following cases a man will not see image grater than himself

glass slab (n =1.5) of thickness 9 cm is placed over a written paper what is the Shift in the lattes ?

A concave mirror of focal length 20 cm forms an virtual image having twice the linear dimensions of the object, the position of the object will be ___________cm

In experiment to find focal length of a concave mirror a graph is drawn between the magnitude of u and v. The graph looks like___________.

A mark at the bottom of the liquid appears to rise by 0.2 m, If depth of the liquid is 2.0 m then refractive index of the liquid is________________.

1.6 is a refractive index of plano-convex lens, then the redius of curvature of the curved sunface is 60 cm. The focal length of the lens is_______ cm

One convex lens and one concave lens placed is contect with each other. If the ratio of their power is 2/3 and focal length of the combination is 30 cm, then individual focal lengths are__________.