Light MCQ Quiz-Class 10

In case of a virtual and erect image, the magnification of a mirror is

Which type of mirror is used in ophthalmoscope to examine throat and ear?

When an object is placed between the focus and the pole of a concave mirror, the image formed is

The Refractive index of quartz is ___than/to alcohol.

A ray passing through the focus and falling on a convex lens will:

In case of a real and inverted image, the magnification of a mirror is

The Refractive index of water is _____

When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. The nature of the image is

The ratio of the height of an image to the height of an object known as

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When a ray of light goes from one medium to another, there is:

Virtual, erect, and diminished image are the characteristic features of a:

In order to have a very wide field of view, the mirror used in cars is

A convex mirror has a focal length 15 cm. A real object placed at a distance 15 cm in front of it from the pole, produces an image at

For an image to be the same size as the object in case of concave mirror, what will be the position of the object?

A convex lens is:

The unit of magnification is

The nature of the image formed by a mirror is not affected by the position of the object. The mirror is:

The focal length of the plane mirror is:

If a mirror has a focal length of –20 cm, it is a

The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?

Linear magnification produced by a concave mirror may be

If the magnification of mirror has a plus sign then the image is ____and _____.

A spherical mirror and a thin lens have each a focal length of – 20 cm

If parallel beams, non-parallel to principal axis fall on the convex lens, they converge at a point:

Name the type of image that can be obtained on a screen.

Magnification produced by a plane mirror

For concave mirror, What will be the position of the image if the object is placed at infinity?

An object of size 3.0 cm is kept perpendicular to the principal axis of a concave mirror. The distance of the object from the pole of the mirror equals the radius of curvature of the mirror. The size of the image formed is:

A virtual image larger than the object can be produced by a

The image of a distant object is obtained on a screen by using a concave mirror. The focal length of the mirror can be determined by measuring the distance between

The mirror used by dentists to concentrate light on the tooth to be examined is a

When the object is at focus of a concave mirror, the image is formed at

A dentist uses a small mirror that gives a magnification of 4 when it is held 0.60 cm from a tooth. The radius of curvature of the mirror is

An object 4 cm light is placed at a distance of 15 cm in front of a convex mirror having a radius of curvature of 10 cm. Then the image found is at a distance of

The power of a lens is -4.0 D. What is the nature of the lens?

If the image formed behind a concave mirror what will be the nature of the image?

A boy is standing in front of a plane mirror at a distance of 3 m from it. What is the distance between the boy and his image?

A boy is standing at a distance of 3 m in front of a plane mirror. If the boy moves 1 m backward, the distance between the image and the boy is

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