MCQ Questions for Class 10 Science Chapter 10 Light Reflection and Refraction with Answers
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1. The deviation of light ray from its path when it travels from one transparent medium to another transparent medium is called
2. Convex lens is also known as
3. The image which is formed behind the mirror
4. An object is placed at a distance of 0.25 m in front of a plane mirror. The distance between the object and image will be
5. The angle of incidence for a ray of light having zero reflection angle is
6. For a real object, which of the following can produce a real image?
7. Which of the following mirror is used by a dentist to examine a small cavity?
8. An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is
9. An object at a distance of + 15 cm is slowly moved towards the pole of a convex mirror. The image will get
10. A concave mirror of radius 30 cm is placed in water. It’s focal length in air and water differ by
11. When light falls on a smooth polished surface, most of it
12. Image formed by reflection from a plane mirror is
13. If an incident ray passes through the focus, the reflected ray will
14. Magnifying power of a concave lens is
15. Which of the following can make a parallel beam of light when light from a point source is incident on it?
16. A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror. The focal length of this mirror is
17. Under which of the following conditions a concave mirror can form an image larger than the actual object?
18. Which of the following statements is true?
19. Magnification produced by a rear view mirror fitted in vehicles
20. Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?
21. A full length image of a distant tall building can definitely be seen by using
22. In torches, search lights and headlights of vehicles the bulb is placed
23. The laws of reflection hold good for
24. The path of a ray of light coming from air passing through a rectangular glass slab traced by four students are shown as A, B, C and D in figure. Which one of them is correct?
25. You are given water, mustard oil, glycerine and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?
26. Which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in figure?
27. Which of the following ray diagrams is correct for the ray of light incident on a lens shown in figure?
28. In which of the following, the image of an object placed at infinity will be highly diminished and point sized?
29. Light travel fastest in
30. A student used a device (X) to obtain/focus the image of a well illuminated distant building on a screen (S) as shown alongside in the diagram. Select the correct statement about the device (X).
31. A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
32. The mirror having reflection surface curved outward
33. The mirror having reflecting surface curved inwards
34. The mirror used as rear-view mirror in vehicles
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