Class 10 Science Chapter 10 MCQ (Multiple Choice Questions) of Human Eye and Colourful World. Practice with these important questions to be confident in topics given in chapter 10 of grade 10 science. All the questions are useful for the preparation of class test or terminal exams. Questions are taken from NCERT Book intext pages and exercises question answers.

Class 10 Science Chapter 10 MCQ with Answers

Class: 10Science
Chapter: 10Human Eye and Colourful World
Contents:MCQ Online Tests with Explanation and Answers
Session:CBSE 2025-26

Class 10 Science Chapter 10 MCQ Online Test for 2025-26

Class 10 Science Chapter 10 MCQ Online tests with solutions and explanation are given below. All the questions are important for exams. After completing Chapter 10 from NCERT Textbook, these questions are helpful for the preparation of exams in less time.

Q1

Sunset is red because at that time the light coming from the sun has to travel:

[A]. Lesser thickness of earth’s atmosphere
[B]. Greater thickness of earth’s atmosphere
[C]. Varying thickness of earth’s atmosphere
[D]. Along the horizon
Q2

At noon the sun appears white as

[A]. Light is least scattered
[B]. All the colours of the white light are scattered away
[C]. Blue colour is scattered the most
[D]. Red colour is scattered the most
Q3

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

[A]. The retina is a delicate membrane having a large number of light sensitive cells called “rods” and “cones”.
[B]. Blind spot is a small area of the retina insensitive to light where the optic nerve leaves the eye.
[C]. The space between cornea and eye lens is filled with a watery liquid called “vitreous humor”.
[D]. The retina is behind the eye-lens and at the back part of the eye.
Q4

Which of the following statement is or are incorrect?

[A]. The Iris control the amount of light entering the eyes.
[B]. If the amount of light received by the eye is large then the Iris contracts, the Pupil reduces the amount of light entering the eye.
[C]. If the amount of light received by the eye is small, the Iris expands, the pupil so that more light may enter the eyes.
[D]. All the above
Q5

Which of the following phenomena of light are involved in the formation of a rainbow?

[A]. Reflection, refraction and dispersion.
[B]. Refraction, dispersion and total internal reflection.
[C]. Refraction, dispersion and internal reflection
[D]. Dispersion, scattering and total internal reflection
Q6

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

[A]. Rods are the rod-shaped cells present in the retina of an eye which are sensitive to dim light.
[B]. Cone are the cone shaped cells present in the retina of an eye which are sensitive to bright light or normal light.
[C]. The cones easily work on in dim light but not bright light.
[D]. Normal eye can see the distant objects as well as the nearby objects clearly due to its power of accommodation.
Q7

Twinkling of stars is due to atmospheric

[A]. Dispersion of light by water droplets
[B]. Refraction of light by different layers of varying refractive indices
[C]. Scattering of light by dust particles
[D]. Internal reflection of light by clouds
Q8

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

[A]. The ability of an eye to focus the distant objects as well as the nearby objects on the retina by changing the focal length of its length is called accommodation.
[B]. The farthest point from the eye at which an object can be seen clearly is known as the “far point” of the eye.
[C]. The least distance of distinct vision for a normal human eye is about 25cm.
[D]. All the above
Q9

The clear sky appears blue because:

[A]. Blue light gets absorbed in the atmosphere
[B]. Ultraviolet radiations are absorbed in the atmosphere
[C]. Violet and blue lights get scattered more than lights of all other colours by the atmosphere
[D]. Light of all other colours is scattered more than the violet and blue colour lights by the atmosphere.
Q10

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

[A]. Myopia is that defect of vision due to which a person cannot see the distant object clearly.
[B]. The far point of an eye suffering from myopia is less than infinity.
[C]. Myopia is corrected by using spectacles containing concave lenses.
[D]. The whole purpose of using a concave lens here is to increasing the converging power of the eye-lens.
Q11

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. Presbyopia is that defect of vision due to which an old person cannot see the nearby objects clearly due to loss of power of accommodation of the eye.
[B]. The near point of the old person having presbyopia gradually recedes and becomes much more than 25 cm away.
[C]. Presbyopia defect is corrected in the same way as hypermetropia by using spectacles having convex lenses.
[D]. All the above.
Q12

Which of the following statement is correct regarding the propagation of light of different colours of light in air

[A]. Red light moves fastest
[B]. Blue light moves faster than green light
[C]. All the colours of the white light move with the same speed
[D]. Yellow lights moves with the mean speed as that of the red and the violet light.
Q13

The stars twinkle but the planets do not twinkle at night because:

[A]. The stars are small but the planets are large
[B]. The stars are very large but planets are small
[C]. The stars are much nearer but planets are far off
[D]. The stars are far off but planets are nearer to earth
Q14

The bluish colour of water in deep sea is due to

[A]. The presence of algae and other plants found in water
[B]. Reflection of sky in water
[C]. Scattering of light
[D]. Absorption of light by the sea
Q15

The animals called predators have:

[A]. Both the eyes on the sides
[B]. One eye on the side and one at the front
[C]. One eye on the front and one at the back
[D]. Both the eyes at the front
Q16

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

[A]. When a ray of light passes through a prism, it bends towards the thicker part of the prism. [B] [
[B]. The angle between incident ray and emergent ray is called “angle of deviation”.
[C]. In refraction through a glass prism, the emergent ray is parallel to the incident ray.
[D]. None of the above.
Q17

A man driving a car can read a distant road sign clearly but finds difficulty in reading the odometer on the dashboard of the car. Which of the following statement is correct about this man?

[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 receded away.
[D]. The far point of his eyes has come closer to him.
Q18

The focal length of the eye lens increases when eye muscles

[A]. Are relaxed and lens become thinner [B] [C] [D]
[B]. Contract and lens becomes thicker
[C]. Are relaxed and lens becomes thicker
[D]. Contract and lens becomes thinner
Q19

Vibhu is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

[A]. The violet colour has the minimum speed in glass prism, so the violet colour is deviated the maximum.
[B]. The red colour has the maximum speed in glass prism, so the red colour is deviated the least.
[C]. The seven colours of the spectrum can be denoted by the word VIBGOYR.
[D]. The seven colours of spectrum differ only in their frequencies.
Q20

Which of the following statements is correct?

[A]. A person with myopia can see distant objects clearly
[B]. A person with hypermetropia can see nearby objects clearly
[C]. A person with myopia can see nearby objects clearly
[D]. A person with hypermetropia cannot see distant objects clearly
Q21

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

[A]. The scattering of light by particles in its path is called tyndall effect.
[B]. The blue coloured light present in white sunlight is scattered much more easily than the red light.
[C]. Dust particles and water droplets suspended in the atmosphere are much larger than the wavelength range of visible light.
[D]. The nitrogen and oxygen gas molecules present in the atmosphere are bigger than the wavelength range of visible light.
Q22

The term ” accommodation” as applied to the eye, refers to its ability to:

[A]. Control the light intensity falling on the retina
[B]. Erect the inverted image formed on the retina
[C]. Vary the focal length of the lens
[D]. Vary the distance between the lens and retina
Q23

The human eye possesses the power of accommodation. This is the power to:

[A]. Alter the diameter of the pupil as the intensity of light changes
[B]. Distinguish between lights of different colours
[C]. Focus on objects at different distances
[D]. Decide which of the two objects is closer.
Q24

How does the eye change in order to focus on near or distant objects?

[A]. The lens moves in or out
[B]. The retina moves in or out
[C]. The lens becomes thicker or thinner
[D]. The pupil gets larger or smaller
Q25

Having two eyes gives a person:

[A]. Deeper field of view
[B]. Coloured field of view
[C]. Rear field of view
[D]. Wider field of view

Class 10 Science Chapter 10 Important Questions

What is the function of Iris?

Iris is a dark muscular diaphragm that controls the size of the pupil.

What is meant by accommodation of eye?

The ability of the eye lens to adjust its focal length is called accommodation.

Why do stars twinkle?

The twinkling of a star is due to atmospheric refraction of starlight. The starlight, on entering the earth’s atmosphere, undergoes refraction continuously before it reaches the earth.This makes continuously change in star’s position and we see the twinkling of stars.

Why does sky apear blue in colour?

The molecules of air and other fine particles in the atmosphere have size smaller than the wavelength of visible light. These are more effective in scattering light of shorter wavelengths at the blue end than light of longer wavelengths at the red end. When sunlight passes through the atmosphere, the fine particles in air scatter the blue colour (shorter wavelengths) more strongly than red. The scattered blue light enters our eyes and we see blue sky.

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Last Edited: April 27, 2023