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Class 10 Science Chapter 11 The Human Eye And The Colourful World Quiz 3 (25 MCQs)

Quiz Instructions

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1. In the human eye, the image of an object is formed at the .....
2. What converts images formed by the lens into electrical impulses?
3. Far-sightedness can be rectified by using a concave lend of suitable power.
4. When an object is placed closer to eye .....
5. For normal vision, the far point is at ..... distance.
6. The far point for a normal eye is
7. Blind spot is at the junction of
8. The phenomenon of ..... of light by the colloidal particles gives rise to the Tyndall effect.
9. Myopia and Hypermetropia can be corrected by
10. Myopia is also called
11. When light touches the surface of a prism refraction takes place, in simple terms the light
12. Scattering of light by colloidal solution is known as
13. Which colour has least refractive index?
14. Where is the image formed in Eye?
15. A white light falls on a glass prism, the least deviated colour is-
16. The far point of a myopic person is 80 cm in front of the eye. What is the nature and power of the lens required to correct the problem?
17. The least distance of distinct vision is also called
18. What is the time difference between actual sunset and apparent sunset?
19. Planets twinkle.
20. Angle of deviation is
21. A person needs a lens of power-5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting (i) distant vision, and (ii) near vision?
22. Which color of light is most refracted during dispersion by a prism?
23. What is the phenomenon of light is divided into seven components of white light?
24. A hypermetropic person has near point farther away from the normal near point (25 cm)
25. A myopic person has the far point nearer than infinity.
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