Tag: characteristics of an image formed by a plane mirror

Questions Related to characteristics of an image formed by a plane mirror

What will be the condition of image when you stand in front of a plane flat mirror and look at yourself and you raise your right hand?

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

  1. Erect and enlarged

  2. Erect and reduced

  3. Erect and reversed

  4. Inverted and reversed

  5. Inverted and reduced

Show answer
Correct Option: C
Explanation:

The image formed will be an erect image of same height as that of the person (object) but laterally reversed  i.e his right hand will appear to be his left hand of his mirror image and vice-verse.

Thus option C is correct.

A candle is placed in front of an optical instrument, and an image is obtained as erect, virtual, and reversed from left to right. Identify the device that would produce the types of images described above.

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

  1. Concave mirror

  2. Convex mirror

  3. Concave lens

  4. Convex lens

  5. Flat mirror

Show answer
Correct Option: E
Explanation:

The image formed by concave mirror can be real or virtual and inverted as well.
The image formed by the convex mirror will be virtual, erect but smaller in  size than the object.
The image formed by convex lens can be inverted.
Plane mirrors are the only mirrors for which the image will always be virtual, erect and of the same size as the object. The image produced is also laterally inverted.

When the distance between the object and the plane mirror increases.

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

  1. The image remains same

  2. The size of the image will become less than the size of the object

  3. The distance between the image and the plane mirror increases

  4. The distance between the image and the plane mirror decreases

Show answer
Correct Option: C
Explanation:

Since image formed by a plane mirror is at a same distance as that of object distance increases then image distance will also increase.

Which of the following forms a virtual and erect image of same size for all positions of the object?

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

  1. Convex lens

  2. Plane mirror

  3. Convex mirror

  4. Concave mirror

Show answer
Correct Option: B
Explanation:

Plane mirror and convex mirror will always form virtual and erect images for all position. Convex mirror forms diminished image.

Which of the following is a valid point in differentiating between an Image and an Object ?

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

  1. Image is the point of intersection of reflected/refracted rays while Object is the point of intersection of incident rays

  2. Object is the point of intersection of reflected/refracted rays while Image is the point of intersection of incident rays

  3. Image is the point of intersection of reflected rays while Object is the point of intersection of refracted rays

  4. Image is the point of intersection of refracted rays while Object is the point of intersection of reflected rays

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Correct Option: A
Explanation:

Object is defined as point of intersection of incident rays. Image is defined as point of intersection of reflected rays (in case of reflection) or refracted rays( in case of refraction).

In optics, what is an image ?

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

  1. The reproduction of an object formed on the screen

  2. The apparent reproduction of an object, formed by a lens or mirror system from reflected, refracted, or diffracted light waves

  3. The reproduction of an object which cannot be captured on the screen

  4. None of the above

Show answer
Correct Option: B
Explanation:

Optical image, the apparent reproduction of an object, formed by a lens or mirror system from reflected, refracted, or diffracted light waves.

Which of the following image can be obtained on screen ?

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

  1. Image formed by Plane mirror

  2. Image formed by Concave mirror

  3. Image formed by Convex mirror

  4. None of the above

Show answer
Correct Option: B
Explanation:
$ \bf{Convex\ mirrors} $ and $ \bf{Plane\ Mirrors} $ always produce  virtual images 
$ \bf{Concave\ mirrors} $ produce both, real and virtual images. 

Only Real Images can be obtained on the screen. Thus, images formed by Concave mirror can be obtained on a screen.

Hence, the correct answer is OPTION B. 

Virtual Image can be formed using which of the following mirrors ?

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

  1. Concave Mirror

  2. Convex Mirror

  3. Plane Mirror

  4. All the above

Show answer
Correct Option: D
Explanation:
$ \bf{Convex\ mirrors} $ always produce a virtual, erect and diminished image and the decrease in size of image depends on the position of the object in front of the mirror.

$ \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. The concave mirror forms a virtual and erect image only when the object is placed between the Focus and the pole of the mirror.

Thus, a virtual image can be formed by all the three mirrors.

Hence, the correct answer is OPTION D.

Which of the following is not a valid difference between Real and Virtual image ? 

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

  1. A real image can be caught on a screen whereas a virtual image cannot be caught on a screen

  2. A real image is formed by the actual intersection of light rays whereas a virtual image is formed by the imaginary intersection of light rays.

  3. A real image is always erect whereas a virtual image is always inverted.

  4. A real image is formed when the rays of light after reflection or refraction actually meet at some point whereas a virtual image is formed when the rays of light after reflection or refraction appear to meet at a point.

Show answer
Correct Option: C
Explanation:

1) A real image is always inverted whereas a virtual image is always erect. 

2) A real image is formed when the rays of light after reflection or refraction actually meet at some point whereas a virtual image is formed when the rays of light after reflection or refraction appear to meet at a point.
3) Real images can be projected or seen on a screen. Virtual images cannot be seen or projected on a screen.

A plane mirror gives a real image when the incident beam is:

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

  1. Wide

  2. Narrow

  3. Convergent

  4. Divergent

Show answer
Correct Option: C
Explanation:

A plane mirror can produce a real image if and only if the incident rays are convergent in nature.