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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 appears less deep than it actually is to someone standing nearby due to the effect of
(a) refraction of Light
(b) reflection of Light
(c) dispersion of Light
(d) none of the above
Option a – refraction of Light
What happens to the image formed by a convex lens if its upper portion is covered with black paper?
(a) Image size is reduced to half
(b) Upper part of the image disappears
(c) Image brightness decreases
(d) No impact occurs
Option c – Image brightness decreases
The layer in the eye that absorbs Light and prevents internal reflection is known as the
(a) choroid
(b) sclera
(c) retina
(d) cornea
Option a – choroid
The refractive index of a material is given by
(a) speed of Light in vacuum ÷ speed of Light in the material
(b) speed of light in water ÷ speed of light in the material
(c) speed of light in the material ÷ speed of light in air
(d) all of the above
Option a – speed of light in vacuum ÷ speed of light in the material
The eye lens ……. light rays to form a real, inverted, and minimized image on the …….
(a) converges, retina
(b) diverges, retina
(c) converges, pupil
(d) diverges, pupil
Option a – converges, retina
The retina of the human eye contains approximately 125 million light-sensitive cells known as
(a) rods only
(b) cones only
(c) both rods and cones
(d) none of the above
Option a – rods only
Placing an object between F and 2F of a convex lens results in an image that is
(a) beyond 2F
(b) magnified
(c) real and upside-down
(d) all of the above
Option c – real and upside-down
A spherical mirror with a negative focal length must be a
(a) concave mirror
(b) convex mirror
(c) plane mirror
(d) none of the above
Option a – concave mirror
A student at the back of the class can read the board but struggles to read his book. This implies
(a) his near point has moved farther away
(b) his near point has moved closer
(c) his far point has moved closer
(d) his far point has moved farther away
Option a – his near point has moved farther away
If a person can’t clearly see objects beyond 2 meters, this can be corrected using a lens with power
(a) +0.5 D
(b) -0.5 D
(c) +0.2 D
(d) -0.2 D
Option a – +0.5 D
When viewing nearby objects, the ciliary muscles ……. the lens to ……. its focal length.
(a) contract, decrease
(b) contract, increase
(c) expand, increase
(d) expand, decrease
Option a – contract, decrease
For an object at infinity, a concave mirror forms an image that is
(a) at the focal point
(b) extremely small
(c) real and inverted
(d) all of the above
Option d – all of the above
Rearview mirrors in vehicles produce magnification that is
(a) less than one
(b) greater than one
(c) equal to one
(d) depends on object position
Option a – less than one
When an object is at the focus of a convex mirror, the resulting image is
(a) behind the mirror
(b) reduced in size
(c) upright and virtual
(d) all of the above
Option d – all of the above
Light passing from a denser to a less dense medium will
(a) travel straight
(b) bend away from the normal
(c) bend towards the normal
(d) none of the above
Option b – bend away from the normal
In devices like torches and car headlights, the bulb is typically placed
(a) between the pole and the focus of the reflector
(b) very close to the focus
(c) between the focus and the center of curvature
(d) at the center of curvature
Option b – very close to the focus
An object positioned at 2F of a convex lens will have an image that is
(a) located at 2F
(b) same in size
(c) real and inverted
(d) all of the above
Option c – real and inverted
When a concave mirror is used to reflect light from a distant object, the image formed at the focus is
(a) magnified
(b) virtual
(c) upright
(d) real, inverted, and reduced
Option d – real, inverted, and reduced
The law of reflection states that
(a) angle of incidence = angle of reflection
(b) sine of incidence = sine of reflection
(c) sine i ÷ sine r = constant
(d) all of the above
Option a – angle of incidence = angle of reflection
Under what condition can a convex mirror form an inverted image?
(a) never
(b) when the object is very far
(c) when the object is at radius of curvature distance
(d) when object is at the focal point
Option a – never
In a concave mirror, if the object is placed at the principal focus, the image formed is
(a) real and inverted
(b) of infinite size
(c) located at infinity
(d) all of the above
Option d – all of the above
When an object is placed at the focus of a concave mirror, the resulting image is
(a) at infinity
(b) greatly enlarged
(c) real and inverted
(d) all of the above
Option d – all of the above
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