MCQ Questions for Class 10 Science Chapter 11 The Human Eye and the Colourful World

With MCQ Questions for Class 10 Science Chapter 11 The Human Eye and the Colourful World, you will be able to better gauge your understanding of the material. They help to identify the areas where the students need more work.

Chapter 11 Class 10 Science MCQ Questions is often used in exams, and practicing with them can help you get the highest marks possible. They are a great way to test your understanding of a topic and can be used to prepare for exams.

Chapter 11 The Human Eye and the Colourful World Class 10 Science MCQ Questions

1. What type of image is formed by the eye lens on the retina?
(a) Real and erect
(b) Virtual and inverted
(c) Real and inverted
(d) Virtual and erect
▶ (c) Real and inverted

2. When white light enters a glass prism from air, the angle of deviation is maximum for
(a) blue light
(c) red light
(b) yellow light
(d) violet light
▶ (c) red light

3. The amount of light entering the eye can be controlled by the
(a) iris
(c) cornea
(b) pupil
(d) ciliary muscles
▶ (b) pupil

4. The sky would appear red instead of blue if
(a) atmospheric particles scatter blue light more than red light
(b) atmospheric particles scatter all colours equally
(c) atmospheric particles scatter red light more than blue light
(d) the Sun was much hotter
▶ (c) atmospheric particles scatter red light more than blue light

5. We can see a rainbow on a sunny day when you look at the sky through a waterfall or through a water fountain
(a) with the Sun in front of you
(b) with the Sun behind you
(c) with the Sun overhead
(d) just after the sunset
▶ (b) with the Sun behind you

6. The blue colour of the sky is due to the phenomenon of
(a) scattering
(c) internal reflection
(b) dispersion
(d) atmospheric refraction
▶ (a) scattering

7. Dispersion of light by glass prism takes place because
(a) the lights of different colours have different intensities.
(b) the lights of different colours have different speed in a medium.
(c) different colours have different frequencies.
(d) the lights of different colours have different energies.
▶ (b) the lights of different colours have different speed in a medium.

8. Blue colour of the sky is due to the phenomenon of:
(a) Reflection of light
(b) Refraction of light
(c) Dispersion of light
(d) Scattering of light
▶ (d) Scattering of light

9. The star appear shifted from their actual position due to the phenomenon of:
(a) Diffraction of light
(b) Scattering of light
(c) Refraction of light
(d) Reflection of light
▶ (c) Refraction of light

10. The defect of vision in which a person cannot see the distant objects clearly but can see nearby objects clearly is called
(a) myopia
(b) hypermetropia
(c) presbyopia
(d) bifocal eye
▶ (a) myopia

11. The least distance of distinct vision for a normal eye is
(a) infinity
(b) 25 cm
(c) 2.5 cm
(d) 25 m
▶ (b) 25 cm

12. A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power
(a) +0.5 D
(b) -0.5 D
(c) +0.2 D
(d) -0.2 D
▶ (b) -0.5 D

13. At noon, the Sun appears white as
(a) blue colour is scattered the most
(b) red colour is scattered the most
(c) light is least scattered
(d) all the colours of the white light are scattered away
▶ (c) light is least scattered

14. One cannot see through the fog, because
(a) refractive index of the fog is very high
(b) light suffers total reflection at droplets
(c) fog absorbs light
(d) light is scattered by the droplets
▶ (d) light is scattered by the droplets

15. Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
(a) Twinkling of stars
(b) Stars seem higher than they actually are
(c) Advanced sunrise and delayed sunset
(d) Rainbow
▶ (d) Rainbow

16. The splitting of white light into different colours on passing through a prism is called
(a) reflection
(b) refraction
(c) dispersion
(d) deviation
▶ (c) dispersion

17. The effect of glass prism is only to separate the seven colours of
(b) light from bulb
(a) White light
(c) Sunlight
(d) All of these
▶ (d) All of these

18. When a ray passes through a prism
(a) It goes undeviated
(c) It bends towards the base
(b) It remain parallel to a base
(d) None of these
▶ (b) It remain parallel to a base

19. When a beam of white light passes through the prism
(a) velocity of violet rays is greater than that of red rays
(b) velocities of violet and red rays are equal to each other
(c) velocity of violet rays is smaller than that of red rays
(d) velocities of violet and red rays do not change
▶ (b) velocities of violet and red rays are equal to each other

20. The angle between two refracting surfaces of prism is called the angle of
(a) Prism
(b) Emergence
(c) Deviation
(d) Incidence
▶ (a) Prism

21. The angle at which the ray gets deviated is called
(a) Angle of deviation
(b) Angle of dispersion
(c) Angle of emergence
(d) refracted angle
▶ (a) Angle of deviation

22. Which of the following is correct for the order of colours present in white light
(a) VIBGYOR
(b) VIYGOBR
(c) VBIYORG
(d) VIGBOYR
▶ (a) VIBGYOR

23. The broad wavelength range of visible spectrum is
(a) 4000-8000Å
(c) 10000-20000Å
(b) 2000-4000Å
(d) None of the above
▶ (a) 4000-8000Å

24. A transparent refracting material which is bounded by two plane refracting surfaces is
(a) Prism
(c) Glass slab
(b) Convex lens
(d) None of these
▶ (a) Prism

25. Red colour of the sun at the time of sunrise and sunset is because
(a) Red colour is least scattered
(b) Blue colour is least scattered
(c) Red colour is scattered the most
(d) All colours are equally scattered
▶ (a) Red colour is least scattered

26. Which option justifies that the sun appears red at sunrise and sunset?
(a) The distance between the sun and earth reduces.
(b) The white light disperses into seven colours, only red enters the atmosphere.
(c) Red has high wavelength, so it travels longer distance.
(d) Red scatters highest by the atmosphere.
▶ (c) Red has high wavelength, so it travels longer distance.