NMMS CLASS 7 GS LIGHT 2

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NMMS CLASS 7 GS LIGHT 2 👇


1. A concave mirror is used by dentists because it forms:

  • Smaller image
  • Upside down image
  • Shadow image
  • Magnified image

2. A convex mirror in shops helps to:

  • Watch wide area
  • Make objects bigger
  • Block light
  • Produce shadows

3. When a ray of light falls normally on a mirror, the angle of reflection is:

  • 45 degrees
  • 90 degrees
  • 180 degrees
  • Zero

4. Eye glasses for myopia contain:

  • Convex lens
  • Concave lens
  • Cylindrical lens
  • Plane lens

5. If a mirror makes your face look smaller, it must be:

  • Concave mirror
  • Plane mirror
  • Rectangular mirror
  • Convex mirror

6. A rainbow appears in the sky after rain because of:

  • Reflection by clouds
  • Absorption by air
  • Dispersion by water drops
  • Scattering by sunlight

7. Which lens focuses sunlight to burn paper?

  • Concave lens
  • Cylindrical lens
  • Plane lens
  • Convex lens

8. A beam of light coming out of a torch is:

  • Diverging
  • Converging
  • Parallel only
  • Zigzag type

9. Which mirror produces an inverted image when object is far?

  • Convex mirror
  • Concave mirror
  • Plane mirror
  • Glass mirror

10. A concave lens makes the rays:

  • Converge
  • Stop
  • Reflect
  • Diverge

11. A thick glass slab causes light to bend because of:

  • Reflection
  • Dispersion
  • Refraction
  • Absorption

12. A transparent object allows light to:

  • Block completely
  • Pass partially
  • Scatter totally
  • Pass completely

13. A translucent object allows light to:

  • Not pass at all
  • Pass completely
  • Pass partially
  • Disappear

14. A black T-shirt absorbs:

  • Minimum light
  • Maximum light
  • Only white light
  • No heat

15. When you look into still water, you see your face because of:

  • Reflection
  • Refraction
  • Scattering
  • Dispersion

16. The image in a spoon’s outer side is:

  • Real and larger
  • Magnified and real
  • Upside down only
  • Virtual and smaller

17. A child with hypermetropia uses:

  • Concave lens
  • Cylindrical lens
  • Plane lens
  • Convex lens

18. A ray passing through the center of a lens:

  • Always bends a lot
  • Stops in the lens
  • Does not bend
  • Forms multiple images

19. A pencil in water appears bent due to:

  • Refraction
  • Reflection
  • Dispersion
  • Absorption

20. A periscope helps to see objects:

  • Only near objects
  • Not in direct view
  • Under sunlight only
  • Only luminous objects

21. Which lens is used in a camera?

  • Concave lens
  • Convex lens
  • Plane mirror
  • Convex mirror

22. Which color scatters least in the atmosphere?

  • Red
  • Violet
  • Blue
  • Green

23. A concave mirror is used in solar cookers because it:

  • Spreads sunlight
  • Blocks sunlight
  • Cools sunlight
  • Focuses sunlight

24. A magnifying glass forms:

  • Real, inverted, enlarged image
  • Real, small, erect image
  • Virtual, small, inverted image
  • Virtual, erect, enlarged image

25. A plane mirror forms the image:

  • On the mirror
  • In front only
  • Inside the eye
  • Behind the mirror

26. Which material is opaque?

  • Wood
  • Glass
  • Water
  • Thin paper

27. Which material is translucent?

  • Aluminum plate
  • Oiled paper
  • Clear glass
  • Mirror sheet

28. Which material is transparent?

  • Cardboard
  • Black cloth
  • Water
  • Mud wall

29. If light hits a rough surface, we get:

  • Regular reflection
  • No reflection at all
  • Only refraction
  • Irregular reflection

30. The shade of a tree is cooler because:

  • Heat is reflected
  • Leaves create lens effect
  • Light scatters more
  • Sunlight is blocked

31. The sky appears blue due to:

  • Scattering of light
  • Reflection of oceans
  • Refraction in clouds
  • Dispersion by dust

32. Which device uses total internal reflection?

  • Magnifier
  • Torch light
  • Camera lens
  • Optical fiber

33. A mirror that always forms virtual image:

  • Concave mirror
  • Plane mirror
  • Spherical mirror
  • Convex mirror

34. Real image can be obtained on a screen by:

  • Convex mirror
  • Concave mirror
  • Plane mirror
  • Transparent sheet

35. Light bends when travelling from air to glass because:

  • Color changes
  • Mirror effect
  • Temperature effect
  • Speed changes

36. A driver sees larger view behind because of:

  • Concave mirror
  • Convex mirror
  • Flat lens
  • Ordinary window

37. A shadow becomes sharper when:

  • Light is scattered
  • Light is blocked partially
  • Object is transparent
  • Light is a point source

38. A white shirt feels hotter than black in winter because:

  • It reflects heat more
  • It absorbs all colors
  • It reflects heat more
  • It allows heat to pass

39. The color that bends the most in refraction:

  • Green
  • Red
  • Yellow
  • Violet

40. Which mirror is used to concentrate solar rays?

  • Convex mirror
  • Plane mirror
  • Concave mirror
  • Silver mirror

41. Which helps us to see written letters on board clearly?

  • Lens color changing
  • Iris changing shape
  • Retina moving forward
  • Eye lens adjusting

42. The blind spot of human eye has:

  • Only rod cells
  • Only cone cells
  • Extra muscles only
  • No vision cells

43. The surface of water acts as a:

  • Convex mirror
  • Plane mirror
  • Concave mirror
  • Opaque glass

44. When light moves from glass to air it:

  • Bends towards normal
  • Does not bend ever
  • Stops moving suddenly
  • Bends away from normal

45. A laser beam is:

  • Highly diverging
  • Weak bending light
  • Multi-directional only
  • Highly parallel

46. Which lens spreads out parallel light rays?

  • Convex lens
  • Plano lens
  • Concave lens
  • Fiber lens

47. Shadow becomes larger when object:

  • Moves far from light
  • Reflects all light
  • Absorbs no light
  • Moves nearer to light

48. Which is NOT needed to form a shadow?

  • Opaque object
  • Screen
  • Light source
  • Transparent object

49. If object comes closer to a concave mirror:

  • Image becomes larger
  • Image becomes smaller
  • Image vanishes fully
  • Image becomes upside

50. The color that bends the least:

  • Violet
  • Blue
  • Indigo
  • Red
Location: Mogalturu, Andhra Pradesh 534281, India

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