Class 10th Science Chapter – 10 Human Eye and Colourful World MCQ With Answers

September 17, 2023

Class 10th Science Chapter – 10 Human Eye and Colourful World MCQ With Answers

Textbook	NCERT
Class	10^th
Subject	Science
Chapter	10^th
Chapter Name	Human Eye and Colourful World
Category	Class 10th Science
Medium	English
Source	Last Doubt

Class 10th Science Chapter – 10 Human Eye and Colourful World MCQ With Answers In This Chapter we will learn about What is human eye colour called, What is the human eye short note, What are the 4 main functions of the eye, What is a 5 sentence about eyes, What is called eye, Why the eye is an organ, What is the important of eyes, What is our eye vision, Which lens is used in eye, How do we see Colour, What are the 3 types of vision, Can humans see color, How is colour formed, Why do we see black, Which vision is better, What are the 5 steps of vision, What does 75 vision mean, Who discovered colour, What are the 7 colors of light, What are the 7 basic colors, What colour is indigo and more such things for more knowledge about this Chapters read their.

Class 10th Science Chapter – 10 Human Eye and Colourful World MCQ With Answers

Chapter – 10

Human Eye and Colourful World

MCQ

(1) 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.

Answer – (B) refraction of light by different layers of varying refractive indices.

(2) 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.

Answer – (C) Refraction, dispersion and internal reflection.

(3) 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.

Answer – (A) light is least scattered.

(4) 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.

Answer – (A) The near point of his eyes has receded away.

(5) A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using lens of power ?

A. +0.5 D.
B. -0.5 D.
C. +0.2 D.
D. -0.2 D.

Answer – (D) -0.5 D.

(6) 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.

Answer – (C) scattering of light.

(7) 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.

Answer – (B) Scattering of light.

(8) 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 air.

Answer – (B) is scattered the least by smoke or fog.

(9) Which of the following statements is correct regarding the propagation of light of different colours of white 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 light moves with the mean speed as that of the red and the violet light.

Answer – (C) All the colours of the white light move with the same speed.

(10) 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.

Answer – (C) violet and blue lights get scattered more than lights of all other colours by the atmosphere.

(11) A student is observing the diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends ?

A. towards the normal while entering into the prism and away from the normal while emerging out of the prism.
B. away from the normal while entering into the prism and towards the normal while emerging out of the prism.
C. away from the normal while entering as well as while emerging out of the prism.
D. towards the normal while entering as well as while emerging out of the prism.

Answer – (A) towards the normal while entering into the prism and away from the normal while emerging out of the prism.

(12) A student traces the path of a ray through a glass prism for four different values of angle of incidence. On analysing the diagrams he is likely to conclude that the emergent ray ?

A. is always parallel to the incident ray.
B. is always perpendicular to the incident ray.
C. is always parallel to the refracted ray.
D. always bends at an angle to the direction of incident ray.

Answer – (D) always bends at an angle to the direction of incident ray.

(13) Which of the following statement 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.

Answer – (C) A person with myopia can see nearby objects clearly.

(14) The focal length of the eye lens increases when eye muscles ?

A. are relaxed and lens becomes thinner.
B. contract and lens becomes thicker.
C. are relaxed and lens becomes thicker.
D. contract and lens becomes thinner.

Answer – (A) are relaxed and lens becomes thinner.

(15) When light rays enter the eye, most of the refraction occurs at the ?

A. crystalline lens.
B. outer surface of the cornea.
C. iris.
D. pupil.

Answer – (B) outer surface of the cornea.

(16) Myopia may arise due to ?

A. excessive curvature of the eye lens.
B. elongation of the eyeball.
C. both A. and B.
D. none of these.

Answer – (C) both A. and B.

(17) Type of lens used in correction of hypermetropia ?

A. concave lens.
B. reflecting lens.
C. bifocal lens.
D. convex lens.

Answer – (D) convex lens.

(18) Type of lens used in correction of myopia ?

A. convex lens.
B. concave lens.
C. reflecting lens.
D. bifocal lens.

Answer – (B) concave lens.

(19) Reason behind advance sunrise and delayed sunset ?

A. atmospheric refraction.
B. total internal reflection.
C. dispersion.
D. reflection.

Answer – (A) atmospheric refraction.

(20) The splitting of white light into its component colours is called ?

A. refraction.
B. reflation.
C. dispersion.
D. tyndall effect.

Answer – (C) dispersion.

(21) In an experiment to trace the path of a ray of light through a glass prism for different values of angle of incidence a student would find that the emergent ray ?

A. is parallel to the incident ray.
B. is perpendicular to the incident ray.
C. is parallel to the refracted ray.
D. bends at an angle to the direction of incident ray.

Answer – (D) bends at an angle to the direction of incident ray.

NCERT Solution Class 10th Science All Chapters MCQ

Chapter 1 – Chemical Reactions and Equations

Chapter 2 – Acids, Bases, and Salts

Chapter 3 – Metals and Non-Metals

Chapter 4 – Carbon and Its Compounds

Chapter 5 – Life Processes

Chapter 6 – Control and Coordination

Chapter 7 – How Do Organisms Reproduce

Chapter 8 – Heredity

Chapter 9 – Light reflection and refraction

Chapter 10 – Human eye and colorful world

Chapter 11 – Electricity