Multiple
Choice Questions
1.
What is the characteristic of the image
formed by a plane mirror?
a. It is always virtual and erect.
b. The size of the image is equal to
that of the object.
c. The image formed is as far behind the mirror as the object is in front of
it.
d. All the above statements are correct
2. According
to the laws of reflection, the angle of reflection is equal to the angle of:
a. Incidence
b. Refraction
c. Diffraction
d. Scattering
3.
Which type of mirror forms an enlarged,
virtual, and erect image?
a. Concave mirror
b. Convex mirror
c. Plane mirror
d. Spherical mirror
4. What
is the focal length of a concave mirror whose radius of curvature is 20 cm?
a. 10 cm
b. 20 cm
c. 40 cm
d. 5 cm
5.
In a concave mirror, where is the
principal focus located?
a. At the centre of curvature
b. At the pole of the mirror
c. Beyond the centre of curvature
d. Between the pole and the centre of curvature
6.
Which mirror is used by dentists to see a
large image of the patient's teeth?
a. Plane mirror
b. Concave mirror
c. Convex mirror
d. Spherical mirror
7.
The image formed by a convex mirror is
always:
a. Real and inverted
b. Virtual and erect
c. Enlarged
d. Diminished
8.
Where is the centre of curvature of a
convex mirror located?
a. In front of the mirror
b. Behind the mirror
c. At the pole of the mirror
d. At the principal focus
9.
Which mirror is often used in rear-view
mirrors of vehicles?
a. Concave mirror
b. Convex mirror
c. Plane mirror
d. Spherical mirror
10. The
aperture of a spherical mirror refers to its:
a. Focal length
b. Radius of curvature
c. Diameter
d. Principal focus
11. Assertion
(A): The image formed by a plane mirror is always virtual and erect.
Reason (R): A plane mirror reflects light according to the laws
of reflection.
a. Both A and R are true, and R is the correct explanation of A.
b. Both A and R are true, but R is not the correct explanation of A.
c. A is true, but R is false.
d. A is false, but R is true.
12. Assertion
(A): The focal length of a concave mirror is half of its radius of curvature.
Reason (R): The principal focus lies midway between the pole and
the centre of curvature of a concave mirror.
a. Both A and R are true, and R is the correct explanation of A.
b. Both A and R are true, but R is not the correct explanation of A.
c. A is true, but R is false.
d. A is false, but R is true.
13. Match the following terms related to spherical mirrors with their definitions:
|
Term |
Definition |
|
Pole |
A. A
point on the mirror's surface where all reflected rays converge or diverge |
|
Centre of Curvature |
B. Point
on the principal axis located at twice the focal length from the mirror |
|
Principal Focus |
C. Point
where all rays parallel to the principal axis converge or appear to diverge |
a. Pole
- A, Centre of Curvature - B, Principal Focus - C
b. Pole - D, Centre of Curvature - C, Principal Focus - B
c. Pole - A, Centre of Curvature - B, Principal Focus - C
d. Pole - C, Centre of Curvature - A, Principal Focus - D
|
Mirror Type |
Image |
|
a.
Concave mirror |
A. Diminished,
virtual, erect |
|
b.
Convex mirror |
B. Enlarged,
real, inverted |
|
c.
Plane mirror |
C. Virtual,
erect, same size as object |
True
or False Questions
15. The
centre of curvature of a concave mirror lies in front of it.
True / False
16. A
concave mirror can form both real and virtual images depending on the position
of the object.
True / False
17. The
principal focus of a concave mirror is located behind the mirror.
True / False
18. The
focal length of a spherical mirror is half of its radius of curvature.
True / False
19. Convex
mirrors are used to focus light to burn objects.
True / False
20. The
aperture of a spherical mirror refers to the distance between the pole and the
principal focus.
True / False
Answers
- d
- a
- a
- a
- d
- b
- b
- b
- b
- c
- a
- a
- a
- a
- True
- True
- False
- True
- False
- False
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