Tag: formation of image in a plane mirror

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Questions Related to formation of image in a plane mirror

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

Image formed by a plane mirror is:

  1. of same size as that of object

  2. at the same distance behind the mirror as the object in front

  3. erect

  4. real in nature
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
Explanation

The image formed by a plane mirror is erect and virtual in nature and of same size as that of the object. The distance of image from the mirror, behind the mirror, is same as the distance of the object from the mirror, in front of the mirror.

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

No matter how far you stand from a mirror, your image always appears erect. The mirror is likely to be:

  1. Plane

  2. Concave

  3. Both A and B

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$ \bf{Plane\ Mirrors} $ always produce a virtual and erect image having the same size as that of the object irrespective of the position of object.

$ \bf{Concave\ mirrors} $ produce real and virtual, erect and inverted, diminished, same-sized and magnified image depending upon the position of the object on the principal axis.  
But the concave mirror forms a virtual, erect and enlarged image only when the object is placed between the Focus and the pole of the mirror.


Hence, the correct answer is OPTION A.

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

Image formed by a plane mirror is

  1. Erect, virtual, same size as the object

  2. Inverted, real, smaller size as the object

  3. Erect, real, same size as the object

  4. Inverted, virtual, smaller size as the object
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$ \bf{Plane\ Mirrors} $ always produce a $ \bf{virtual} $ and $ \bf{erect} $ image having the $ \bf{same\ size\ as\ that\ of\ the\ object} $ irrespective of the position of object on the principal axis.


Hence, the correct answer is OPTION A.

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

Image is formed at that point where

  1. At least two rays of light meet

  2. Where three rays of light meet

  3. Where two rays of light appear to meet

  4. B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Real image is formed at a point where light rays actually meet where virtual image is formed at a point where rays of light appears to meet.

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

Image of an object is seen in a plane mirror, the distance from the mirror to the image depends on

  1. The wavelength of light

  2. The distance of the object from the mirror

  3. The distance of both the observer and the object to the mirror

  4. The thickness of the mirror
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Images in a plane mirror are formed as far behind the mirror as the object in front of it. 
Thus, the distance of the image of an object from the mirror is equal to the distance of the object from the mirror. 

Hence, the correct answer is OPTION B.

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror
If the object is shifted by a distance towards the mirror, the image will shift by _______ towards the mirror. Fill in the blank.

  1. double the distance

  2. same distance

  3. half the distance

  4. all
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is obvious that if the object is shifted by a distance $d$ towards the mirror, the image will also shift the same distance $d$ towards the mirror i.e., the separation between the object and the image will decrease by $2d$.

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

The silvering on the back surface of a mirror can be done by:

  1. Silver

  2. Mercury

  3. both

  4. none
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A plane mirror is made from a few mm thick glass plate. One surface of glass plate is polished to a high degree of smoothness. This forms the front part of the mirror. And the other (back) surface is silvered (i.e painted with silver, mercury or some other material).

Multiple choice evs reflection of light by plane surfaces characteristics of an image formed by a plane mirror formation of image in a plane mirror characteristics of the image formed by a plane mirror

Distance between an object and plane mirror is 100cm. Find the distance between the object and its image.

  1. $50 cm$
  2. $100 cm$
  3. $200 cm$
  4. $300 cm$
  5. $400 cm$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For plane mirror, the distance between object and mirror $=$ distance between image and mirror $=100$ (given)

Thus, distance between the object and image $=100+100=200 cm$