Class 10 Light MCQ. We covered all the Class 10 Light MCQ in this post for free so that you can practice well for the exam.
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Mock Test on Light for Class 10 Students
When light falls on a smooth polished surface, most of it
(a) is reflected in the same direction
(b) is reflected in different directions
(c) is scattered
(d) is refracted into the second medium
Option a – is reflected in the same direction
The image formed by reflection from a plane mirror is
(a) real and inverted
(b) virtual and erect
(c) real and erect
(d) virtual and inverted
Option b – virtual and erect
If an incident ray passes through the focus, the reflected ray will
(a) pass through the pole
(b) be parallel to the principal axis
(c) retrace its path
(d) pass through the center of curvature
Option b – be parallel to the principal axis
The magnifying power of a concave lens is
(a) always > 1
(b) always < 1
(c) always = 1
(d) can have any value
Option b – always
The image formed by a convex lens can be
(a) virtual and magnified
(b) virtual and diminished
(c) virtual and of the same size
(d) the virtual image is not formed
Option a – virtual and magnified
A point object is placed at a distance of 20 cm from a convex mirror of a focal length of 20 cm. The image will form at
(a) at infinity
(b) at Focus
(c) at the pole
(d) behind the mirror
Option d – behind the mirror
The focal length of a concave mirror is
(a) negative
(b) positive
(c) depends on the position of the object
(d) depends on the position of the image
Option a – negative
If the power of a lens is – 2 D, what is its focal length?
(a) +50 cm
(b) -100 cm
(c) -50 cm
(d) +100 cm
Option c – -50 cm
A spherical mirror and a spherical lens each have a focal length of -10 cm. The mirror and the lens are likely to be
(a) both concave
(b) both convex
(c) the mirror is concave and the lens is convex
(d) the mirror is convex and the lens is concave
Option a – both concave
If the magnification produced by a lens has a negative value, the image will be
(a) virtual and inverted
(b) virtual and erect
(c) real and erect
(d) real and inverted
Option b – virtual and erect
In which of the following, the image of an object placed at infinity will be highly diminished and point sized?
(a) Concave mirror only
(b) Convex mirror only
(c) Convex lens only
(d) Concave mirror, convex mirror, concave lens, and convex lens.
Option d – Concave mirror, convex mirror, concave lens, and convex lens
In the case of a concave mirror, when the object is situated at the principal focus, the image formed is
(a) real and inverted
(b) of infinite size
(c) lies at infinity
(d) All of these
Option d – All of these
An object placed at F of a concave mirror will produce an image
(a) at infinity
(b) highly enlarged
(c) real and inverted
(d) All of these
Option d – All of these
Which of the following statements is true?
(a) A convex lens has 4 dioptre power having a focal length of 0.25 m
(b) A convex lens has – 4 dioptre power having a focal length of 0.25 m
(c) A concave lens has 4 dioptre power having a focal length of 0.25m
(d) A concave lens has – 4 dioptre power having a focal length of 0.25 m
Option a – A convex lens has 4 dioptre power having a focal length of 0.25 m
The laws of reflection hold good for
(a) plane mirror only
(b) concave mirror only
(c) convex mirror only
(d) all mirrors irrespective of their shape
Option d – all mirrors irrespective of their shape
Which mirroji can produce a virtual, erect, and magnified ifhage of an object?
(a) Concave mirror
(b) Convex mirror
(c) Plane mirror
(d) Both concave and convex mirrors
Option a – Concave mirror
If the image is formed in front of the mirror, then the image distance will be
(a) positive or negative depending on the size of the object
(b) neither positive nor negative
(c) positive
(d) negative
Option d – negative
A ray of light travels from a rarer medium to a denser medium. While entering the denser medium at the point of incidence, it
(a) goes straight into the second medium
(b) bends towards the normal
(c) bends away from the normal
(d) does not enter at all
Option b – bends towards the normal
Under which of the following conditions a concave mirror can form an image larger than the actual object?
(a) When the object is kept at a distance equal to its radius of curvature
(b) When an object is kept at a distance less than its focal length
(c) When an object is placed between the focus and center of curvature
(d) When an object is kept at a distance greater than its radius of curvature
Option c – When an object is placed between the focus and center of curvature
For an object at infinity, a concave mirror produces an image at its focus that is
(a) enlarged
(b) a virtual
(c) erect
(d) real, inverted, and diminished
Option d – real, inverted, and diminished
According to the laws of reflection
(a) angle i = angle r
(b) sine i = sine r
(c) sine i /sine r = constant
(d) All of these
Option a – angle i= angle r
An inverted image can be seen in a convex mirror
(a) under no circumstances
(b) when the object is very far from the mirror
(c) when the object is at a distance equal to the radius of curvature of the mirror
(d) when the distance of the object from the mirror is equal to the focal length of the mirror
Option a – under no circumstances
When the object is placed between f and 2f of a convex lens, the image formed is
(a) at f
(b) at 2f
(c) beyond 2f
(d) between 0 and f
Option c – beyond 2f
We covered all the class 10 light mcq above in this post for free so that you can practice well for the exam.
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