Ray Optics And Optical Instruments Mock Tests

A glass prism of refractive index √2 has an angle of 60°. The angle of minimum deviation is:

A convex lens of focal length 20 cm is dipped in water. Its focal length will:

A concave mirror of focal length 20 cm forms an image of an object placed at 30 cm from the mirror. The image distance is:

A concave mirror of focal length f forms a real image that is n times the size of the object. The distance of the object from the mirror is:

A concave mirror of focal length 20 cm forms a real image that is half the size of the object. The object distance is:

Light travels from a denser medium of refractive index 1.62 to a rarer medium of refractive index 1.5. The critical angle is:

A convex lens of focal length 20 cm is placed in contact with a concave lens of focal length 10 cm. The combination behaves as a:

A concave mirror of focal length f forms an image of the same size as the object. The distance of the object from the mirror is: