Light Reflection and Refraction Class 10 MCQ. We covered all the Light Reflection and Refraction Class 10 MCQ in this post for free so that you can practice well for the exam.
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MCQ on Light Reflection and Refraction for Class 10 Students
A swimming pool looks shallower than it really is, when seen by a person standing outside near it, because of the phenomenon of
(a) refraction of light
(b) reflection of light
(c) dispersion of light
(d) None of these
Option a – refraction of light
How will the image formed by a convex lens be affected if the upper half of the lens is wrapped with black paper?
(a) The size of the image is reduced to one-half
(b) The upper half of the image will be absent
(c) The brightness of the image is reduced
(d) There will be no effect
Option c – The brightness of the image is reduced
The middle vascular coat that darkens the eye chamber and prevents refraction by absorbing the light rays is
(a) choroid
(b) sclera
(c) retina
(d) cornea
Option a – choroid
The refractive index of a substance is
(a) the speed of light in vacuum/speed of light in the medium
(b) the speed of light in water/ speed of light in the medium
(c) the speed of light in the medium/speed of light in the air
(d) All of these
Option a – the speed of light in vacuum/speed of light in the medium
The eye lens ….. light rays to form real, inverted, and highly diminished image on the ……..
(a) converges, retina
(b) diverges, retina
(c) converges, the pupil
(d) diverges, pupil
Option a – converges, retina
The surface of the retina has about 125 million light-sensitive
(a) rods only
(b) cones only
(c) rods and cones
(d) neither rods nor cones
Option a – rods only
An object placed between F and 2F of a convex lens will produce an image
(a) beyond 2F
(b) enlarged
(c) real and inverted
(d) All of these
Option c – real and inverted
A negative value of the focal length of a spherical mirror indicates that it is
(a) a Concave mirror
(b) a Convex mirror
(c) a Plane mirror
(d) None of these
Option a – a Concave mirror
A student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his textbook. Which of the following statements is correct?
(a) The near point of his eyes has receded away
(b) The near point of his eyes has come closer to him
(c) The far point of his eyes has come closer to him
(d) The far point of his eyes has receded away
Option a – The near point of his eyes has receded away
A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
(a) +0.5 D
(b) -0.5 D
(c) +0.2 D
(d) -0.2 D
Option a – +0.5 D
While looking at nearby objects, the ciliary muscles …….. the eye lens so as to………. its focal length.
(a) contract, increase
(b) contract, decrease
(c) expand, increase
(d) expand, decrease
Option a – contract, increase
An object placed at the infinity of a concave mirror will produce an image
(a) at Focus
(b) highly diminished
(c) real and inverted
(d) All of these
Option d – All of these
Magnification produced by a rearview mirror fitted in vehicles
(a) is less than one
(b) is more than one
(c) is equal to one
(d) can be more than or less than one depending upon the position of the object in front of it.
Option a – is less than one
An object placed at F of a convex mirror will produce an image
(a) Behind the mirror
(b) Diminished
(c) Virtual and erect
(d) All of these
Option d – All of these
When a ray of light passes from an optically denser medium to a rarer medium, it
(a) goes undeviated
(b) bends away from the normal
(c) bends towards the normal
(d) None of these
Option b – bends away from the normal
In torches, searchlights, and headlights of vehicles the bulb is placed
(a) between the pole and the focus of the reflector
(b) very near to the focus of the reflector
(c) between the focus and center of curvature of the reflector
(d) at the center of curvature of the reflector
Option b – very near to the focus of the reflector
An object placed at 2F of a convex lens will produce an image
(a) at 2F
(b) same size
(c) real and inverted
(d) All of these
Option c – real and inverted
For an object at infinity, a concave mirror produces an image at its focus that is
(a) enlarged
(b) 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
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
We covered all the light reflection and refraction class 10 MCQ above in this post for free so that you can practice well for the exam.
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