With reference to image formation by a plane mirror, consider the following statements: 1. The image formed cannot be obtained on a screen. 2. The image appears at a greater distance behind the mirror than the object is in front. 3. The image undergoes lateral inversion. Which of the statements given above are correct?

The correct option is (c). Explanation Image formation by a plane mirror is based on the laws of reflection. The image produced is virtual, erect, and maintains specific geometric relationships with the object regarding size and distance. Statement-wise Analysis: - Statement 1 is Correct: The image formed by a plane mirror is virtual. Virtual images are formed when light rays appear to diverge from a point behind the mirror but do not actually meet. Since the light rays do not physically intersect at the image point, the image cannot be projected or obtained on a screen. - Statement 2 is Incorrect: In the case of a plane mirror, the image is formed at a distance behind the mirror that is exactly equal to the distance of the object in front of it. The image distance is not greater than the object distance. - Statement 3 is Correct: The image undergoes lateral inversion, a phenomenon where the left side of the object appears as the right side of the image and vice versa. This is a characteristic property of reflection by plane mirrors. Key Takeaway: Images formed by plane mirrors are characterized by being virtual, erect, laterally inverted, of the same size as the object, and equidistant from the mirror as the object.

With reference to image formation by a… - NCERT Class 8 Science MCQ

NCERT Class 8 Science — Chapter 4: Light

mcqmedium

With reference to image formation by a plane mirror, consider the following statements:

The image formed cannot be obtained on a screen.
The image appears at a greater distance behind the mirror than the object is in front.
The image undergoes lateral inversion.

Which of the statements given above are correct?

NCERT textbook question

From NCERT Science - class 8 · Page 168

Options

A1 and 2 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (c).

Explanation

Image formation by a plane mirror is based on the laws of reflection. The image produced is virtual, erect, and maintains specific geometric relationships with the object regarding size and distance.

Statement-wise Analysis:

Statement 1 is Correct: The image formed by a plane mirror is virtual. Virtual images are formed when light rays appear to diverge from a point behind the mirror but do not actually meet. Since the light rays do not physically intersect at the image point, the image cannot be projected or obtained on a screen.
Statement 2 is Incorrect: In the case of a plane mirror, the image is formed at a distance behind the mirror that is exactly equal to the distance of the object in front of it. The image distance is not greater than the object distance.
Statement 3 is Correct: The image undergoes lateral inversion, a phenomenon where the left side of the object appears as the right side of the image and vice versa. This is a characteristic property of reflection by plane mirrors.

Key Takeaway:

Images formed by plane mirrors are characterized by being virtual, erect, laterally inverted, of the same size as the object, and equidistant from the mirror as the object.

Your note

More from Chapter 4: Light

With reference to the Periscope, consider the following statements: 1. It works on the principle of multiple reflections. 2. It uses two plane mirrors arranged at right angles to each other. 3. It allows viewing of objects that are not directly in the line of sight. Which of the statements given above are correct?

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Consider the following statements about the image formed by a plane mirror: 1. It is inverted vertically. 2. It is of the same size as the object. 3. It appears to be at the same distance behind the mirror as the object is in front. Which of the statements given above is/are correct?

easy

In the context of the reflection of light, what does the term 'angle of incidence' refer to?

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With reference to the eye's ability to see, consider the following statements: 1. A normal eye can clearly see distant objects as well as objects nearby. 2. The minimum distance for distinct vision is constant at 50 cm for all ages. 3. In old age, eyesight may become foggy due to the eye lens becoming cloudy. Which of the statements given above is/are correct?

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With reference to the eyes of animals, consider the following statements: 1. Crabs have large eyes that allow them to look only in the front. 2. Butterflies have large eyes composed of thousands of little eyes. 3. Owls have a small cornea and pupil to restrict light entry. Which of the statements given above are correct?

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