Light Reflection and Refraction class 8 Important Question
Light Reflection and Refraction
2. Which metal in best reflector of light?
3. Name the mirror which shows image smaller then the object
4. Which color of light show maximum deviation?
5. What the function of iris
6. Name the lens used to correct hypermetropia
7. Write the name of seven color of white light
8. Near point of normal eye
9. Far point of normal eye
10.Miopiya is corrected by
12. Front balged part of the eyeball is called
13. Name the type of mirror used as a backview mirror.
14. Visually impaired people can read and write using
15. The splitting of white light into its seven constituent colours is called
16. The amount of light entering the eye is controlled by
17. In our eye _______ cells can sense colour
18. Write two qualities of image formed by plane mirror
19. Name two luminous object
20. What is the function of rod cell
21. The Angle Between An Incident Ray And The Plane Mirror Is 30 Degree. Find angle of reflection
22. The object is 5 m away from plane mirror the distance between object and image is
23. Bouncing back of light is called
24. Why sky seems blue
25. Which part of eye can be transplant
26. Which type of lens found in human eye
27. Name two Non-Luminous object
28. Name a device which works on the principle of multiple reflection.
29. The angle between the incident ray and reflected ray is 100°. What is the value of angle of incidence?
30. What do we call the image that cannot be obtained on a screen?
31. Express the mathematical formula to calculate the number of images formed when two mirrors are inclined at θ angle.
32. Name the spot inside the human eye where the image is not visible.
33. State the two laws of reflection.
34. Phenomenon of changing left side to right and right side to left by the mirror is called
35.What is the function of retina
36.What is the function on clliary muscle ?
37. The back side of a plane mirror contains
38. There are _________ laws of reflection.
39. he angle between the reflected ray and the normal ray is called
40. If two plane mirrors are inclined at an angle of 40°, number of images formed will be
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