List of top Physics Questions on Refraction of Light asked in CET Delhi Polytechnic

The refractive indices of flint glass and alcohol are 1.65 and 1.36 respectively with respect to air. What is refractive index of flint glass with respect to alcohol ?
The refractive indices of water, glass, kerosene and diamond are 1.33, 1.5, 1.44 and 2.42. In which medium the speed of light is least ?
Two thin lenses of power +3.5 D and -2.5 D are placed in contact. Find the focal length of the lens combination ?
Hypermetropia can be corrected by using :
Image in human eye is formed at :
Very big particles scatter :
The far point of a normal eye is :
The mirror used as shaving mirror is :
When the object is placed at 2F (centre of curvature) in front of a concave mirror then its image is formed at :
An object is placed at a distance of 10 cm from a convex mirror of radius of curvature 30 cm. Where is the position of the image ?
A mirror always forms virtual and diminished image it is a :
Convex lens forms the image of Sun at :
The image formed by a concave mirror, when the object is placed between pole and focus :
Speed of light in vacuum is :