CBSE Class 10 Science MCQs Chapter 11 The Human Eye and the Colourful World

The Human Eye and the Colourful World Class 10 MCQs

CBSE Class 10 Science MCQs Chapter 11 The Human Eye and the Colourful World help students learn important concepts efficiently. Students preparing for Class 10 Science Board exams must not forget to practise the multiple-choice questions. Here, we have provided the MCQs of Chapter 11, The Human Eye and the Colourful World, so that students can memorise the fundamental concepts with ease. The Human Eye and the Colourful World MCQs will help students to fetch marks from this chapter easily. These multiple choice questions on Human Eye and the Colourful World are based on the latest CBSE Class 10 Science Syllabus and are designed by our subject experts.

Download CBSE Class 10 Science MCQs Chapter 11 The Human Eye and the Colourful World with Answers PDF

Students must cover the following concepts from the NCERT Class 10 Science Textbook before solving these multiple-choice questions to answer them correctly.

  • The Human Eye
  • Power of Accommodation
  • Defects of vision and their correction
  • Refraction of Light through a Prism
  • Dispersion
  • Atmospheric Refraction
  • Scattering of Light

Students can also access the CBSE Class 10 Science MCQs for other chapters to prepare for their board exams.

CBSE Class 10 Science MCQs Chapter 11 The Human Eye and the Colourful World with Answers

Q1) A person went for a medical check-up and found that the curvature of his eye lens was increasing. Which defect is he likely to suffer from?

(a) Myopia

(b) Cataract

(c) Presbyopia

(d) Hypermetropia

Correct Answer: Option (a)

Q2) A person gets out in the sunlight from a dark room. How does his pupil regulate and control the light entering the eye?

(a) The size of the pupil will decrease, and less light will enter the eye

(b) The size of the pupil will decrease, and more light will enter the eye

(c) The size of the pupil will remain the same, but more light will enter the eye

(d) The size of the pupil will remain the same, but less light will enter the eye

Correct Answer: Option (a)

Q3) When light rays enter the eye, most of the refraction occurs at the

(a) Crystalline lens

(b) The outer surface of the cornea

(c) Iris

(d) Pupil

Correct Answer: Option (b)

Q4) In which part of the human eye is the image of an object formed?

(a) Iris

(b) Pupil

(c) Retina

(d) Cornea

Correct Answer: Option (c)

Q5) The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because, among all other colours, the red light

(a) is scattered the most by smoke or fog

(b) is scattered the least by smoke or fog

(c) is absorbed the most by smoke or fog

(d) moves fastest in the air

Correct Answer: Option (b)

Q6) 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

Correct Answer: Option (b)

Q7) A person sees an object closer to his eyes. What changes will take place in his eyes?

(a) the pupil size will expand

(b) the ciliary muscles will contract

(c) the focal length of the eye lens will increase

(d) the light entering the eye will be more

Correct Answer: Option (b)

Q8) The splitting of white light into different colours on passing through a prism is called

(a) reflection

(b) refraction

(c) dispersion

(d) deviation

Correct Answer: Option (c)

Q9) The image shows a light ray incident on a glass prism.

CBSE Class 10 Science MCQ Chapter 11 The Human Eye and the Colourful World-1

The various angles are labelled in the image. Which angle shows the angle of incidence and angle of refraction, respectively?

(a) A and D

(b) B and E

(c) C and F

(d) D and F

Correct Answer: Option (a)

Q10) The deflection of light by minute particles and molecules of the atmosphere in all directions is called ____________ of light.

(a) dispersion

(b) scattering

(c) interference

(d) Tyndall effect

Correct Answer: Option (b)

Q11) Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?

(a) Dispersion of light

(b) Scattering of light

(c) Total internal reflection of light

(d) Reflection of light from the earth

Correct Answer: Option (b)

Q12) Why do stars appear to twinkle at night?

(a) Because the light of stars travels in a different medium

(b) Because the distance of a star varies when the earth rotates

(c) Because the star changes its position relative to the earth

(d) Because the atmosphere reflects the light at different angles

Correct Answer: Option (a)

Q13) When white light enters a prism, it gets split into its constituent colours. This is due to

(a) different refractive index for the different wavelengths of each colour

(b) each colour having the same velocity in the prism

(c) prism material having high density

(d) Scattering of light

Correct Answer: Option (a)

Q14) When white light enters a glass prism from the air, the angle of deviation is least for

(a) blue light

(b) yellow light

(c) violet light

(d) red light

Correct Answer: Option (d)

Q15) Which option justifies that the Sun appears red at sunrise and sunset?

(a) Red scatters highest by the atmosphere

(b) The distance between the sun and earth reduces

(c) Red has a high wavelength, so it travels a longer distance

(d) The white light disperses into seven colours, only red enters the atmosphere

Correct Answer: Option (c)

Q16) At noon, the sun appears white as

(a) Light is least scattered

(b) All the colours of white light are scattered away

(c) Blue colour is scattered the most

(d) Red colour is scattered the most

Correct Answer: Option (a)

Q17) 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

Correct Answer: Option (b)

Q18) The image shows the dispersion of the white light in the prism.

CBSE Class 10 Science MCQ Chapter 11 The Human Eye and the Colourful World-2

What will be the colours of the X, Y and Z?

(a) X: red; Y: green; Z: violet

(b) X: violet; Y: green; Z: red

(c) X: green; Y: violet; Z: red

(d) X: red; Y: violet; Z: green

Correct Answer: Option (b)

Q19) Which image shows the deviation of light in a prism?

(a)

CBSE Class 10 Science MCQ Chapter 11 The Human Eye and the Colourful World-3

Correct Answer: Option (b)

Q20) The image shows the ray diagram of a defective eye.

CBSE Class 10 Science MCQ Chapter 11 The Human Eye and the Colourful World-4

Correct Answer: Option (d)

Frequently Asked Questions on The Human Eye and the Colourful World

Q1

The Tyndall effect is the scattering of light by ………………

Colloidal particles.

Q2

Which colour is refracted the most when white light is dispersed from a prism?

Violet.

Q3

Why does the sun appear yellowish-white at noon?

The sun appears yellowish-white at noon because sunlight has to travel a relatively shorter atmospheric distance.

We hope students have found this information on “CBSE Class 10 Science MCQs Chapter 11 The Human Eye and the Colourful World” useful for their exam preparation. Keep learning and stay tuned for further updates on the CBSE Exam. Download BYJU’S App and subscribe to the YouTube channel to access interactive study videos.

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