Light
reflection and refraction
CLASS:- 10 TH
(PHYSICS)
(Objective Question)
1. light of beam motion that is -
(A) straight line in
(B) counter line in
(C) any one direction in
(D) in a not
2. Light the velocity minimum is that ?
(A) vacuum in the
(B) water in
(C) air in
(D) glass in
3. Motor vehicle the driver of the set remains is ?
(A) plane mirror
(B) convex mirror
(C) concave mirror
(D) convex lens
4. Motor vehicle of headlight for whose use it is ?
(A) plane mirror
(B) convex mirror
(C) concave mirror
(D) convex lens
5. flat mirror by the image would have -
(A) true
(B) Fantasy
(C) both
(D) in the no no
6. The lens of the ability of the SI unit is the -
(A) Diopter
(B) Lumen
(C) Lux
(D) Angstrum
7. In light of the rays of the path show that the pictures are said
to have -
(A) ray diagram
(B) focus
(C) ray beam
(D) above all
8. 2D capability with lens of Foksantr would have -
(A) 20 cm
(B) 30 cm
(C) 40 cm
(D) 50 cm
9. A convex lens of Foksantr 50 cm is , then its capacity would be -
(B) + 5d
(B) -5d
(g) -2d
(D) + 2d
10. In light of the rays of the group to say that -
(A) light source
(B) light beam
(C) illuminated
(D) scattering
11. The convex lens of capacity in the -
(A) minus
(B) plus
(C) (A) and (B) both
(D) in the no no
12. The concave lens of capacity in the -
(A) minus
(B) plus
(C) (A) and (B) both
(D) in the no no
13. convex lens to say that -
(A) a converging lens
(B) bi - convex lens
(C) diverging lens
(D) in the no no
14. concave lenses to say that -
(A) a converging lens
(B) bi - concave lens
(C) diverging lens
(D) in the no no
15. Following in the Who substance lenses make the order not used
to be can do ?
(A) Water
(B) Glass
(C) Plastic
(D) Soil
16. Which mirrors the usual object of small Pratibimw get it is ?
(A) flat
(B) convex
(C) concave
(D) No No
17. Which mirrors the object of great Pratibib causes is ?
(A) flat
(B) concave
(C) convex
(D) No No
18. In light of reflection of how the rules are ?
(A) One
(B) Two
(C) Three
(D) Four
19. When the light 's beam air from glass to enter transferee are
so twisted is that -
(A) perpendicular to the
(B) perpendicular to the adjacent
(C) perpendicular to the parallel
(D) in the no no
20. photography camera 's Objective is to -
(A) convex lens
(B) concave lens
(C) convex mirror
(D) concave mirror
21. Side mirror the form of used to
it -
(A) Concave mirror
(B) Convex mirror
(C) Convex lens
(D) Prism
22. A concave mirror to focus distance of 10 cm is then the curvature radius
will -
(A) 10 cm
(B) 20 cm
(C) 5 cm
(D) 40 cm
23. Issue beam and perpendicular to the middle of angles to say
that -
(A) of incidence angle
(B) Reflection Angle
(C) output angle
(D) in the no no
24. simple microscope in what use is it ?
(A) concave mirror
(B) convex mirror
(C) concave lens
(D) convex lens
25. Which lens of by just fantasy image does have ?
(A) convex
(B) concave
(C) Waifokl
(D) in the no no
26. Reflection of rules to determine that the
(A) incidence angle = reflection angle
(B) reflection angle = refraction angle
(C) of incidence angle = deviation angle
(D) of which there is not .
27. Fantasy image would have -
(A) Direct
(B) Reverse
(C) both
(D) No No
28. lenses in the main focus of the number of how much is ?
(A) Two
(B) A
(C) Three
(D) No No
29. Searchlight 's reflective surface would have -
(A) convex
(B) concave
(C) plane
(D) No No
30. beard making in which small mirror used to have -
(A) flat
(B) UTL
(C) concave
(D) No No
31. A convex lens of capacity 1 diopters is , so that the lens of focus
distance is :
(B) + L0
Cm
(B) - L0 Cm
(g) + L00 Cm
(D) - 100 cm
32. The focal lengths of both a spherical mirror and a thin
spherical lens are –15 cm . Mirrors and lenses may include :
(A) both concave
(B) both convex
(C) mirror concave and lens convex
(D) mirror convex and lens concave
33. Lighting of refraction of how rules are :
(A) 1
(B) 2
(C) 3
(D) 4
34. A medium of the refractive index of the value of the :
(B) Sin E
/ Sin and
(B) and Sin / Sin E
(g) Sin Sin Ix R
(D) Sin E + Sin Su
35. A convex lens that is :
(A) all place the same thickness of
(B) between the forward edges of the fat
(C) edges of expectation among the fat
(D) in the no no
36. concave lens of magnification (m) equal to the :
(A) u/v
(B) uv
(C) u+v
(D) v/u
37. Spherical mirrors in Foksantr and curvature radius of the
relationship is :
(B) r =
2fa
(B) Fa = R
(g) Fa = 2 / R
(D) R = Fa / 2
38. Solar cookers in use to ensure that :
(A) concave mirror of
(B) a convex mirror of
(C) flat mirror of
(D) convex and
concave mirrors of
39. convex lens to create reflection occurs is :
(A) equal and direct
(B) real and inverse
(C) actual and direct
(D) in the no no
40. convex lens in the image f and 2f of the put is that , when the reflection occurs is :
(A) big and real
(B) small and real
(C) small and imaginary
(D) big and imaginary
41. Two curved pages from the surrounding concrete through the
call are :
(A) Spherical mirror
(B) Radius
(C) Spherical lens
(D) Plane mirror
42. He spherical mirror is out of the curved be , called the :
(A) concave mirror
(B) flat mirror
(C) convex mirror
(D) in the no no
43. Spherical mirrors the Pravarttk page to center the mirror of
that is you ?
(A) Middle
(B) Pole
(C) Hemisphere
(D) Axis
44. What is the SI unit of magnification produced by a lens ?
(A) m .
(B) cm .
(C) mm
(D) Matrkvihin
45. The lens of the central point of the call are :
(A) center of curvature
(B) optical center
(C) aperture center
(D) axis center
46. A dictionary in found the small letters to read while you are
following in the Which Which lens choice will be ?
(A) a concave lens of 50 cm o focus distance
(B) 50 cm o convex lens of focal length
(C) 5 cm o concave lens of focal length
(D) 5 cm o convex lens of
focus distance
47. These of which mirrors the formula is ?
(A) 1/v +
1/u = 1/f
(B) 1/u – 1/v = 1/f
(C) 1/v + u/1 = 1/f
(D) v/1 + 1 /u = 1/f
48. Tablet mirror the curvature center of which axis to denote be
expected to ?
(A) C
(B) P
(C) O
(D) F
49. The bark of light in a vacuum is ?
(A) 3 × 108 m/s
(B) 2 × 108 km/s
(C) 3 × 109 m/s
(D) 3 × 10110m/s
50. dental expert patients the teeth of the larger image view of
to what mirror of use to you ?
(A) concave mirror
(B) plane mirror
(C) convex mirror
(D) all
51. thin lens to magnify capacity in the ?
(A) at
(B) plus
(C) balanced
(D) All
52. thick lenses of magnification capability is is ?
(A) at
(B) plus
(C) balanced
(D) no translation
53. concave mirror the pole and the main focus of the stored
image of the reflection of nature is that ?
(A) virtual and inverted
(B) virtual and erect
(C) imaginary and erect
(D) all
54. The convex lens of the optical center and the main focus of the
stored WIB 's Pratibim of nature is that ?
(A) virtual and upside down
(B) virtual and direct
(C) Fantasy and Direct
(D) above with no translation
55. concave mirror the main focus on keeping images of Pratibind
's position is that ?
(A) curvature center at
(B) between the point on
(C) to infinity at
(D) all over
56. The convex lens to the main focus on keeping Pratibind 's
position is that ?
(A) curvature center at
(B) focus and curvature center of the middle
(C) to infinity at
(D) pole and the
curvature center of the beach
57. The concave lens the main focus on keeping the image of the
reflection of the situation is that ?
(A) focus and curvature center of the middle
(B) optical center and focus of the
(C) pole and the curvature center of the middle
(D) above with no translation
58. concave lens of the infinite to keep the image of the
reflection of the situation is that ?
(A) curvature center at
(B) focus on
(C) to infinity at
(D) pole on
59. concave
mirror of the infinite to keep the image of the reflection of the situation is
that ?
(A) curvature center at
(B) to infinity at
(C) pole at
(D) focus on
60. The lens of the optical center of the passing that light rays
refraction of the following ...?
(A) deviation of up issue is the
(B) seven colors in the divider to which the
(C) without deviation of the issue is that .
(D) of these with no translation
61. The main focus of passing a light beam Reply: Lenm of
refraction of the post ....?
(A) the main axis of the opposite is the
(B) output beam main axis of the parallel is the
(C) the main axis of the
(D) the same path of Anudis To reflect the addition of
62. The main axis is parallel come a light beam concave lens of
Apvrttn the following ...?
(A) the main axis of the opposite is the
(B) the same path of Anudis To reflect the addition of
(C) output beam main axis of the parallel is the
(D) output beam main axis of the heart are
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