May 2022

The refractive index of water is 1.33. The speed of light in water will be

The refractive index of transparent medium is greater than one because

The nature of image formed by a convex mirror when the object distance from the mirror is less than the distance between pole and focal point (F) of the mirror would be

The angle of incidence i and refraction r are equal in a transparent slab when the value of i is

As light travels from a rarer to a denser medium it will have

If a man’s face is 25 cm in front of concave shaving mirror producing erect image 1.5 times the size of face, focal length of the mirror would be

The nature of the image formed by concave mirror when the object is placed between the focus (F) and centre of curvature (C) of the mirror observed by us is

The image formed by concave mirror is real, inverted and of the same size as that of the object. The position of object should be

An object at a distance of + 15 cm is slowly moved towards the pole of a convex mirror. The image will get

The angle of incidence for a ray of light having zero reflection angle is