Class 10 Science Chapter 10 MCQ (Multiple Choice Questions) of Light – Reflection and Refraction. To score better and clear the doubts in Chapter 10 of 10th standard science, MCQs plays an effective role. These MCQ Quiz includes almost all the intext questions as well as exercises questions also. MCQs are important for examination point of view in academic session 2022-2023.

Class 10 Science Chapter 10 MCQ with Answers for 2022-2023

Class: 10Science
Chapter: 10Light – Reflection and Refraction
Contents:MCQ Online Tests with Answers and Explanation

Class 10 Science Chapter 10 MCQ Online Test for 2022-2023

Class 10 Science Chapter 10 MCQ Online Test with explanation and answers are given below. These are practice questions for the preparation of school exams and class tests also. All the questions and answers are confined to latest NCERT Textbooks for class x Science issued for academic session 2022-2023.

Q1

Consider the following statements and choose the incorrect one:

[A]. According to wave theory, light consists of electromagnetic waves which do not require a material medium for their propagation.
[B]. According to particle theory, light is composed of particle which travel in a straight line at very high speed.
[C]. The modern theory of light called “Quantum theory of light” combines both the wave and particle models of light.
[D]. None of the above
Q2

Read the following sentences carefully, and choose the incorrect one:

[A]. The process of sending back the light rays which fall on the surface of an object, is called reflection of light.
[B]. An aluminum metal is one of the worst reflectors of light.
[C]. The objects having polished surface reflect more light than objects having unpolished, dull surface.
[D]. The reflection of light in a plane mirror takes place at the silver surface in it.
Q3

Riya is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Riya wants to take help from you:

[A]. The angle of incidence and angle of reflection are the same, a beam of parallel rays of light falling on a smooth surface is reflected as a beam of parallel light rays in one direction only. [B] The angle of incidence and the angles of reflection a different, the parallel rays of light falling on a rough surface go in different directions. [C] In diffuse reflection, a parallel beam of incident light is reflected in different directions. [D] Diffuse reflection of light happens due to the failure of the laws of reflection.
Q4

Which of the following statement is or are incorrect?

[A]. A virtual image is formed when light rays coming from an object only appear to meet at a point when produced backwards, after reflection from a mirror.
[B]. A real image is formed when light rays coming from an object actually meet at a point after reflection from a mirror or refraction through a lens.
[C]. The image which can be obtained on a screen is called a virtual image.
[D]. While watching a movie in a cinema hall, we see the images of actors and actresses on the cinemas screen and it is an example of real image.
Q5

Consider the following statements and choose the correct one:

[A]. The phenomenon of lateral inversion is due to the reflection of light.
[B]. In the plane mirror, the right side of our body becomes left side in the image, whereas the left side of our body becomes right side in the image.
[C]. The nature of image formed by a plane mirror is virtual and erect and the size of image formed by a plane mirror is equal to that of the object.
[D]. All the above.
Q6

Badal appeared in class test but he confused to know the correct statement. Would you help him to know that?

[A]. A concave mirror is that spherical mirror in which the reflection of light takes place at the concave surface or bent in surface.
[B]. A convex mirror is that spiracle mirror in which the reflection of light take place at the convex surface or bulging out surface.
[C]. A spherical mirror works on the reflection of light.
[D]. All the above
Q7

Rahul is writing some statements or rules for obtaining images formed by concave mirror. Choose the incorrect statements:

[A]. A ray of light which is parallel to the principal axis of a concave mirror, passes through its focus after reflection from the mirror.
[B]. A Ray of light passing through the centre of curvature of a concave mirror is reflected back along the same path.
[C]. A ray of light passing through the focus of a concave mirror becomes same to the principal axis after reflection.
[D]. A ray of light which is incident at a pole of a concave mirror is reflected back making the same angle with the principal axis.
Q8

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

[A]. Behind the mirror
[B]. Virtual and erect and,
[C]. Larger than the object or magnified
[D]. All the above
Q9

These days New Cartesian Sign convention is used for measuring the various distance in the ray diagrams of spherical mirror. Choose the correct statements:

[A]. Distance measure downward and perpendicular to the principal axis are taken as negative.
[B]. Distance measured upward and perpendicular to the principal axis are taken as positive.
[C]. Distances measured against the direction of incident light are taken as negative.
[D]. All the above.
Q10

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. The bending of light when it goes from one medium to another obliquely is called refraction of light.
[B]. The refraction of light take place at the boundary between the two media.
[C]. The speed of light in air is 3 x 10 to power 18 m/s whereas that in glass is 2 x 10 to power 8 m/s.
[D]. Greater the difference in the speed of light in the two media, greater will be the amount of refraction or bending of light.
Q11

In a science quiz competition, Kanak are asked a question where she had to choose the statement which was/were incorrect?

[A]. When a beam of light travelling in water enters into air, it bends towards the normal.
[B]. When a ray of light goes from air into water, it bends towards the normal.
[C]. The angle which the emergent ray makes with the normal is called the angle of emergence.
[D]. The perpendicular distance between the original path of incident ray and the emergent ray coming out of the glass slab is called lateral displacement of the emergent ray of light.
Q12

Which of the following statement is or are incorrect?

[A]. The stars appear to twinkle on a clear night.
[B]. When a thick glass slab is placed over some printed matter, the letters appear raised when viewed from the top.
[C]. A pool of water appears to be more deep than it actually is.
[D]. A stick pencil held obliquely and partly immersed in water appears to be bent at the water surface.
Q13

Pradeep appeared in class test but he confused to know the correct statement. Would you help him to know that?

[A]. According to the first law of refraction of light, the incident ray, the refracted ray and the normal at the point of incidence, all lie in the same plane.
[B]. According to Snell’s law of refraction of light, the ratio of sine of angle of incidence to the sine of angle of refraction is constant for a given pair of media.
[C]. The refractive index of a medium gives an indication of the light bending ability of that medium.
[D]. All the above.
Q14

The angle between an incident ray and the plane mirror is 30°. The total angle between the incident ray and reflected ray will be:

[A]. 30°
[B]. 60°
[C]. 90°
[D]. 120°
Q15

A ray of light is incident on a plane mirror making an angle of 90° with the mirror surface. The angle of reflection for this ray of light will be:

[A]. 45°
[B]. 90°
[C].
[D]. 60°
Q16

According to New Cartesian Sign Convention:

[A]. Focal length of concave mirror is positive and that of convex mirror is negative
[B]. Focal length of both concave and convex mirrors is positive
[C]. Focal length of both concave and convex mirrors is negative
[D]. Focal length of concave mirror is negative and that of convex mirror is positive
Q17

One of the following does not apply to a concave mirror. This is:

[A]. Focal length is negative
[B]. Image distance can be positive or negative
[C]. Image distance is always positive
[D]. Height of image can be positive or negative
Q18

A concave mirror produces magnification of +4. The object is placed:

[A]. At the focus
[B]. Between focus and centre of curvature
[C]. Between focus and pole
[D]. Beyond the centre of curvature
Q19

If a magnification of, −1 (minus one) is to be obtained by using a converging mirror, then the object has to be placed:

[A]. Between pole and focus
[B]. At the centre of curvature
[C]. Beyond the centre of curvature
[D]. At infinity
Q20

A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is

[A]. – 30 cm
[B]. – 20 cm
[C]. – 40 cm
[D]. – 60 cm
Q21

Magnification produced by a rear-view 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
Q22

A full-length image of a distant tall building can definitely be seen by using

[A]. A concave mirror
[B]. A convex mirror
[C]. A plane mirror
[D]. Both concave as well as plane mirror
Q23

In torches, search lights 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
Q24

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
Q25

You are given water, mustard oil, glycerin and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?

[A]. Kerosene
[B]. Water
[C]. Mustard oil
[D]. Glycerin

Class 10 Science Chapter 10 Extra Questions

What do you know about the diffraction of light?

If an opaque object on the path of light becomes very small, light has a tendency to bend around it and not walk in a straight line – an effect known as the diffraction of light.

Why do we use Convex mirrors as rear-view mirrors?

Convex mirrors are normally used as rear-view mirrors in vehicles. These mirrors are preferred because they always give an erect image. They have a wider field of view as they are curved outwards. In this way, convex mirrors enable the driver to view much larger area than would be possible with a plane mirror.

What is Snell’s law of refraction?

During the refraction of light, the ratio of sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given colour and for the given pair of media. This law is also known as Snell’s law of refraction.

What is meant by Power of a Lens?

The ability of a lens to converge or diverge light rays depends on its focal length. The power of a lens is defined as the reciprocal of its focal length.

Feedback and Suggestion

We are preparing the contents and NCERT Solutions according to the user’s requirement. All the contents are free to use on Tiwari Academy website and Apps. If any user is facing problem during the use of contents, please contact us to rectify the difficulty. We respond our users as soon as possible.