Light Reflection and Refraction
Previous Years' CBSE Board Questions
9.1 Reflection of Light
MCQ
1. The laws of reflection hold true for
(a) plane mirrors only
(b) concave mirrors only
(c) convex mirrors only
(d) all reflecting surface (2020)
VSA (1 mark)
2. What is the magnification of the images formed by plane mirrors and
why?(Delhi 2015)
9.2 Spherical Mirrors
MCQ
3. An optical device forms an erect image of an object placed in front of it. If
the size of the image is one half that of the object, the optical device is a
(a) concave mirror
(c) plane mirror
(b) convex mirror
(d) convex lens. (Term I, 2021-22)
4. The image of an object placed in front of a concave mirror of focal length 15
cm is of the same size as the object. The distance between the object and its
image is
(a) 15 cm
(c) 60 cm
(b) 30 cm
(d) zero. (Term I, 2021-22)
5. The relation R = 2f is valid
(a) for concave mirrors but not for convex mirrors
,(b) for convex mirrors but not for concave mirrors
(c) neither for concave mirrors nor for convex mirrors
(d) for both concave and convex mirrors. (Term I, 2021-22)
6. In which of the following is a concave mirror used?
(a) A solar cooker
(b) A rear view mirror in vehicles
(c) A safety mirror in shopping malls
(d) In viewing full size image of distant tall buildings. (Term I, 2021-22)
7.
For the diagram shown, according to the new Cartesian sign convention the
magnification of the image formed will have the following specifications:
(a) Sign - Positive, Value - Less than 1
(b) Sign - Positive, Value - More than 1
(c) Sign - Negative, Value - Less than 1
(d) Sign - Negative, Value - More than 1 (Term I, 2021-22)
8. The radius of curvature of a converging mirror is 30 cm. At what distance
from the mirror should an object be placed so as to obtain a virtual image?
(a) Infinity
(b) 30 cm
(c) Between 15 cm and 30 cm
(d) Between 0 cm and 15 cm (Term I, 2021-22)
,9.
Which of the following statements is not true in reference to the diagram
shown above?
(a) Image formed is real.
(b) Image formed is enlarged.
(c) Image is formed at a distance equal to double the focal length.
(d) Image formed is inverted. (Term I, 2021-22)
10. An object of height 4 cm is kept at a distance of 30 cm from the pole of a
diverging mirror. If the focal length of the mirror is 10 cm, the height of the
image formed is
(a) +3.0 cm
(c) +1.0 cm
(b) +2.5 cm
(d) +0.75 cm
(Term I, 2021-22) (Ap)
11. When an object is kept within the focus of a concave mirror, an enlarged
image is formed behind the mirror. This image is
(a) real
(b) inverted
(c) virtual and inverted
(d) virtual and erect (2020)
VSA (1 mark)
12. Define pole of a spherical mirror. (2020 C)
SA I (2 marks)
13. Draw a labelled ray diagram to show the path of the reflected ray
corresponding to an incident ray of light parallel to the principal axis of a
, convex mirror. Mark the angle of incidence and angle of reflection on it. (Al
2019)
14. If the image formed by a spherical mirror for all positions of the object
placed in front of it is always erect and diminished, what type of mirror is it?
Draw a labelled ray diagram to support your answer. (2018)
15. An object is placed at a distance of 30 cm in front of a convex mirror of
focal length 15 cm. Write four characteristics of the image formed by the
mirror. (Delhi 2017)
OR
List four specific characteristics of the images of the objects formed by convex
mirrors. (Delhi 2015)
16. An object is placed at a distance of 12 cm in front of a concave mirror of
radius of curvature 30 cm. List four characteristics of the image formed by the
mirror. (Delhi 2017)
17. A ray of light is incident on a convex mirror as shown. Redraw the diagram
and complete the path of this ray after reflection from the mirror. Mark angle
of incidence and angle of reflection on it.
18. Name the type of mirrors used in the design of solar furnaces. Explain how
high temperature is achieved by this device. (AI 2016)
19. "The magnification produced by a spherical mirror is -3". List four
informations you obtain from this statement about the mirror/image. (AI
2016)
20. AB and CD, two spherical mirrors, from parts of a hollow spherical ball
with its centre at O as shown in
Previous Years' CBSE Board Questions
9.1 Reflection of Light
MCQ
1. The laws of reflection hold true for
(a) plane mirrors only
(b) concave mirrors only
(c) convex mirrors only
(d) all reflecting surface (2020)
VSA (1 mark)
2. What is the magnification of the images formed by plane mirrors and
why?(Delhi 2015)
9.2 Spherical Mirrors
MCQ
3. An optical device forms an erect image of an object placed in front of it. If
the size of the image is one half that of the object, the optical device is a
(a) concave mirror
(c) plane mirror
(b) convex mirror
(d) convex lens. (Term I, 2021-22)
4. The image of an object placed in front of a concave mirror of focal length 15
cm is of the same size as the object. The distance between the object and its
image is
(a) 15 cm
(c) 60 cm
(b) 30 cm
(d) zero. (Term I, 2021-22)
5. The relation R = 2f is valid
(a) for concave mirrors but not for convex mirrors
,(b) for convex mirrors but not for concave mirrors
(c) neither for concave mirrors nor for convex mirrors
(d) for both concave and convex mirrors. (Term I, 2021-22)
6. In which of the following is a concave mirror used?
(a) A solar cooker
(b) A rear view mirror in vehicles
(c) A safety mirror in shopping malls
(d) In viewing full size image of distant tall buildings. (Term I, 2021-22)
7.
For the diagram shown, according to the new Cartesian sign convention the
magnification of the image formed will have the following specifications:
(a) Sign - Positive, Value - Less than 1
(b) Sign - Positive, Value - More than 1
(c) Sign - Negative, Value - Less than 1
(d) Sign - Negative, Value - More than 1 (Term I, 2021-22)
8. The radius of curvature of a converging mirror is 30 cm. At what distance
from the mirror should an object be placed so as to obtain a virtual image?
(a) Infinity
(b) 30 cm
(c) Between 15 cm and 30 cm
(d) Between 0 cm and 15 cm (Term I, 2021-22)
,9.
Which of the following statements is not true in reference to the diagram
shown above?
(a) Image formed is real.
(b) Image formed is enlarged.
(c) Image is formed at a distance equal to double the focal length.
(d) Image formed is inverted. (Term I, 2021-22)
10. An object of height 4 cm is kept at a distance of 30 cm from the pole of a
diverging mirror. If the focal length of the mirror is 10 cm, the height of the
image formed is
(a) +3.0 cm
(c) +1.0 cm
(b) +2.5 cm
(d) +0.75 cm
(Term I, 2021-22) (Ap)
11. When an object is kept within the focus of a concave mirror, an enlarged
image is formed behind the mirror. This image is
(a) real
(b) inverted
(c) virtual and inverted
(d) virtual and erect (2020)
VSA (1 mark)
12. Define pole of a spherical mirror. (2020 C)
SA I (2 marks)
13. Draw a labelled ray diagram to show the path of the reflected ray
corresponding to an incident ray of light parallel to the principal axis of a
, convex mirror. Mark the angle of incidence and angle of reflection on it. (Al
2019)
14. If the image formed by a spherical mirror for all positions of the object
placed in front of it is always erect and diminished, what type of mirror is it?
Draw a labelled ray diagram to support your answer. (2018)
15. An object is placed at a distance of 30 cm in front of a convex mirror of
focal length 15 cm. Write four characteristics of the image formed by the
mirror. (Delhi 2017)
OR
List four specific characteristics of the images of the objects formed by convex
mirrors. (Delhi 2015)
16. An object is placed at a distance of 12 cm in front of a concave mirror of
radius of curvature 30 cm. List four characteristics of the image formed by the
mirror. (Delhi 2017)
17. A ray of light is incident on a convex mirror as shown. Redraw the diagram
and complete the path of this ray after reflection from the mirror. Mark angle
of incidence and angle of reflection on it.
18. Name the type of mirrors used in the design of solar furnaces. Explain how
high temperature is achieved by this device. (AI 2016)
19. "The magnification produced by a spherical mirror is -3". List four
informations you obtain from this statement about the mirror/image. (AI
2016)
20. AB and CD, two spherical mirrors, from parts of a hollow spherical ball
with its centre at O as shown in
