Q. Which of the following mirror is used by a dentist to examine a small cavity?
✅ Correct Answer: (C)
Concave mirror
Light Reflection and Refraction MCQs with answers
Dear candidates you will find MCQ questions of 10th Class - Physics | Chapter: Light Reflection and Refraction here. Learn these questions and prepare yourself for coming examinations. You can check the right answer of any question by clicking the option or by clicking view answer button.
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Q. An object at a distance of + 15 cm is slowly moved towards the pole of a convex mirror. The image will get
✅ Correct Answer: (D)
diminished and virtual
Q. 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
✅ Correct Answer: (D)
0.125 m
Q. The power of a lens is -4.0 D. what is the nature of the lens?
✅ Correct Answer: (B)
Concave
Q. For a real object, which of the following can produce a real image?
✅ Correct Answer: (B)
Concave mirror
Q. The nature of the image formed by concave mirror when the object is placed between the focus (F) and centre of curvature (C) of the mirror observed by us is
✅ Correct Answer: (C)
real, inverted and enlarged
Q. In torches, search lights and head lights of vehicles the bulb is placed
✅ Correct Answer: (B)
Very near to the focus
Q. The focal length of concave mirror is 10 cm. The radius of curvature of mirror will be
✅ Correct Answer: (B)
20 cm
Q. The focal length of concave mirror is 15 cm. Its radius of curvature will be:
✅ Correct Answer: (B)
30 cm
Q. The relationship between focal length and radius of curvature is:
✅ Correct Answer: (C)
2f = R
Q. The focal length of a convex mirror is 12 cm. The radius of convex surface of the mirror will be:
✅ Correct Answer: (D)
24 cm
Q. The object is placed at distance 10 cm in front of a plane mirror. The distance of image from mirror will be:
✅ Correct Answer: (B)
10 cm
Q. The image formed by a mirror is always straight whatever will be the distance, then mirror is
✅ Correct Answer: (A)
Only plane
Q. The image due to convex mirror is always formed
✅ Correct Answer: (C)
between pole and focus
Q. A concave mirror gives virtual, refract and enlarged image of the object but image of smaller size than the size of the object is
✅ Correct Answer: (C)
Between P and F
Q. In optics an object which has higher refractive index is called
✅ Correct Answer: (B)
Optically denser
Q. The optical phenomena, twinkling of stars, is due to
✅ Correct Answer: (C)
Atmospheric refraction
Q. Convex lens focus a real, point sized image at focus, the object is placed
✅ Correct Answer: (C)
At infinity
Q. The radius of curvature of a mirror is 20cm the focal length is
✅ Correct Answer: (B)
10cm
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