Que-1: The angle which the …………… ray makes with the …………… at the point of incidence is called angle of incidence.

(a) reflected, mirror
(b) incidence, mirror
(c) incidence, normal
(d) reflected, normal

Ans: (c) incidence, normal
Hint-  The angle which the incidence ray makes with the normal at the point of incidence is called angle of incidence.

Que-2: The plane containing the incident ray and normal is called :

(a) plane of reflection
(b) normal plane
(c) plane of incidence
(d) none of the above

Ans: (c) plane of incidence
Hint-  The plane containing the incident ray and normal is called plane of incidence

Que-3: Regular reflection occurs when a beam of light falls on a ……………

(a) smooth surface
(b) polished surface
(c) rough surface
(d) Both (a) and (b)

Ans: (d) Both (a) and (b)
Hint-  Regular reflection occurs when a beam of light falls on a smooth and polished surface, such as a plane mirror. The reflected beam is also parallel and it is in a fixed direction. It can be seen only from a particular direction.

Que-4: According to the law of reflection:

(a) i/r​ = Constant
(b) sin i/sin r = Constant
(c) i + r = Constant
(d) i = r

Ans: (d) i = r
Hint-  According to the law of reflection the angle of incidence is equal to the angle of reflection.

Que-5: For a ray incident normally on a plane mirror, the angle of incidence is :

(a) 90°
(b) 45°
(c) 30°
(d) 0°

Ans: (d) 0°
Hint-  For a ray incident normally on a plane mirror, the angle of incidence is i = 0°, therefore the angle of reflection r = 0°. Thus, a ray of light incident normally on a mirror is reflected along the same path.

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Que-6: For a ray incident normally on a plane mirror, the angle of reflection is :

(a) 90°
(b) 0°
(c) 45°
(d) 30°

Ans: (b) 0°
Hint-  For a ray incident normally on a plane mirror, the angle of incidence is i = 0°, therefore the angle of reflection r = 0°. Thus, a ray of light incident normally on a mirror is reflected along the same path.

Que-7: The perpendicular drawn on the surface at the point of incidence is called :

(a) normal
(b) incident ray
(c) reflected ray
(d) none of the above

Ans: (a) normal
Hint-  The perpendicular drawn to the surface at the point of incidence is called normal.

Que-8: The image formed due to the actual intersection of the reflected rays is :

(a) virtual
(b) diminished
(c) real
(d) enlarged

Ans: (c) real
Hint-  The image which can be obtained on a screen is called a real image. It is inverted. It is formed when light rays after reflection actually intersect.

Que-9: The image formed by a plane mirror is:

(a) erect and diminished
(b) erect and enlarged
(c) inverted and of same size
(d) erect and of same size

Ans: (d) erect and of same size
Hint-  The characteristics of an image formed by a plane mirror are — upright (or erect), virtual and of the same size as the object.

Que-10: The image formed by a plane mirror is:

(a) real
(b) virtual
(c) virtual with lateral inversion
(d) real with lateral inversion

Ans: (d) virtual with lateral inversion
Hint-  The characteristics of an image formed by a plane mirror are — upright (or erect), virtual.

Que-11: A concave mirror forms …………… image whereas a convex mirror forms ……………

(a) real, real
(b) virtual, real
(c) virtual, virtual
(d) real, virtual

Ans: (d) real, virtual
Hint-  For a distant object, the image formed by a concave mirror is real. The image of an object formed by a plane mirror or a convex mirror is virtual.

Que-12: Which of the following combination of letters does not show lateral inversion ?

(a) A, C, I
(b) M, T, V
(c) D, L, A
(d) X, Y, Z

Ans: (b) M, T, V
Hint-  Lateral inversion is the interchange of left and right sides in a plane mirror image. The letters M, T, and V do not exhibit noticeable lateral inversion in their mirror image due to their inherent symmetry about a vertical line passing through their midpoint.

Que-13: If the object is shifted by a distance d towards a plane mirror, the image will shift by distance …………… towards the mirror.

(a) d
(b) 2d
(c) 3d
(d) None of the above

Ans: (a) d
Hint- If the object is shifted by a distance d towards a plane mirror, the image will also shift by a distance d towards the mirror.