In the convex mirror, the size of the image is always
The lens which is thin at the center but thick at the edges is called
The disability of the eye to form distinct images of nearby objects on its retina is known as
If the object is towards the right side of the lens, it is said to be
A mirror whose polished, reflecting surface is a part of a hollow sphere of glass or plastic is known as
If the object is at focal length and it is positive then the mirror is
For a real image made on the right side of the lens by a real object, the image distance is
The angle of incidence that causes refracted ray to bend through 90° is called
The magnification of a telescope is equal to
Water separates the colors of sunlight into a rainbow due to
An object and its image in a concave mirror are of the same height, yet inverted when the object is 30 cm from the mirror. The focal length of the mirror should be
When light travels in water or glass, its speed
If the object is towards the left side of the lens, it is said to be
Any transparent material having two surfaces of which at least one is curved is called
A mirror whose inner curved surface is reflecting is
The SI unit for the power of lens is
The cladding is made of glass or plastic of relatively
The process of blending of light as it passes from air into glass and vice versa is called
To explore the interior organs of the body for a surgical purpose, we use
The variation of the focal length of the eye lens to form a sharp image on the retina is called
The mirror used in headlights is
A magnifying glass is also called
If a concave lens has a focal of 10 cm. At what distance should the object from the lens be placed so that it forms an image at 5 cm from the lens?
Pole is also termed as
In photograph enlarger, the object is placed
A magnifying glass is a lens that forms a virtual image that is
The ability to distinguish between two closely placed objects or point sources is called an instrument's
A telescope can make stars look
An endoscope is used to explore the
The inability of the eye to see the image of the objects is called
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