Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror] Column 1 Column 2 (A) m = - 2 (a) Convex mirror (B) m = - 1 2 (b) Concave mirror (C) m = + 2 (c) Real image (D) m = + 1 2 (d) Virtual image

A → b and c; B → b and c; C → b and d; D → a and d

A → a and c; B → a and d; C → a and b; D → c and d

A → a and d; B → b and c; C → b and d; D → b and c

A → c and d; B → b and d; C → b and c; D → a and d

EASY

Earn 100

Name the point where all the incident rays coming parallel to the principal axis meet after reflection from a concave mirror.
(Center of curvature/ focus).

50% studentsanswered this correctly

Important Questions on Light – Reflection and Refraction

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

An object is placed

5 cm

in front of convex mirror whose radius of curvature is

3 cm

. Find the position and nature of image.

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

Define the principal focus of a concave mirror.

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

The distance between pole and principal focus of a spherical mirror is called

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

_____ is located behind a convex mirror :

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

An object is placed at a distance of

10 cm

. From a convex mirror of focal length

15 cm

. The position and nature of the image are :

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

Define the focal length of a spherical mirror.

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

In a car a rear view mirror having a radius of curvature

1.50 m

forms a virtual image of a bus located

10.0 m

from the mirror. The factor by which the mirror magnifies the size of the bus is close to

HARD

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

A concave mirror of focal length 15cm forms an image. The position of the object when the image is virtual and linear magnification is 2 is.

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

A student holding a mirror in his hand, directed the reflecting surface of the mirror towards the Sun. He then directed the reflected light on to a sheet of paper held close to the mirror.

Will he be able to determine the approximate value of focal length of this mirror from this activity ? Give reason and draw ray diagram to justify your answer in this case.

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

Match the corresponding entries of column 1 with column 2. [Where m is the magnification produced by the mirror]

	Column 1		Column 2
(A)	$m = - 2$	(a)	Convex mirror
(B)	$m = - \frac{1}{2}$	(b)	Concave mirror
(C)	$m = + 2$	(c)	Real image
(D)	$m = + \frac{1}{2}$	(d)	Virtual image

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

Observe the following diagram and answer the question given below

Question Image

Explain why a ray of light passing through the centre of curvature of a concave mirror gets reflected back along the same path.

HARD

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

A wire is bent in the shape of a right angled triangle and is placed in front of a concave mirror of focal length

f

, as shown in the figure. Which of the figures shown in the four options qualitatively represent(s) the shape of the image of the bent wire? (These figures are not to scale.)
Question Image

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

A spherical mirror and a thin spherical lens each of focal length

- 10 cm

are given. The mirror and lens are likely to be:

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

You are asked to design a shaving mirror assuming that a person keeps it at

10 cm

from his face and views the magnified image of the face at the closest comfortable distance of

25 cm

. The radius of curvature of the mirror would then be:

MEDIUM

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

To find the focal length of a convex mirror, a student records the following data:

Object pin	Convex Lens	Convex Mirror	Image Pin
22.2 cm	32.2 cm	45.8 cm	71.2 cm

The focal length of the convex lens is

f_{1}

and that of mirror is

f_{2}

. Then taking index correction to be negligibly small,

f_{1}

and

f_{2}

are close to:

HARD

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface. A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :

Question Image

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

Does focal length of a spherical mirror changes when it is completely immersed in water? Predict and write the reason.

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

At focus

F

and between

F

and

2 F

, a concave mirror always forms a

EASY

Science>Physics>Light – Reflection and Refraction>Spherical Mirrors

A ray of light makes an angle of

50 °

with the surface

S_{1}

of the glass slab. Its angle of incidence will be

Name the point where all the incident rays coming parallel to the principal axis meet after reflection from a concave mirror. (Center of curvature/ focus).

Important Questions on Light – Reflection and Refraction

Learn and Prepare for any exam you want !

Name the point where all the incident rays coming parallel to the principal axis meet after reflection from a concave mirror.
(Center of curvature/ focus).