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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

The Diagram in Fig. Shows an Incident Ray Ao and the Normal on On a Plane Mirror. Draw the Reflected Ray. State the Law You Use to Draw the Direction of the Reflected Ray. - Physics

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प्रश्न

The diagram in fig. shows an incident ray AO and the normal ON on a plane mirror. Draw the reflected ray. State the law you use to draw the direction of the reflected ray.

टीपा लिहा
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उत्तर

Law of reflection of light is used to draw the direction of the reflected ray.
This law states that angle of incidence is equal to the angle of reflection.
∠i = ∠r

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Images Formed by a Plane Mirrors
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पाठ 4: Light Energy - Short/Long Answer Questions

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सेलिना Concise Physics [English] Class 7 ICSE
पाठ 4 Light Energy
Short/Long Answer Questions | Q 11

संबंधित प्रश्‍न

Write true or false of the following statement.

When a light ray is reflected from a wall, the angle of incidence is not equal to the angle of reflection.


What is meant by lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram. 


An insect is sitting in front of a plane mirror at a distance 1 m from it. 
(a) Where is the image of the insect formed?


An optician while testing the eyes of a patient keeps a chart of letters 3 m behind the patient and asks him to see the letters on the image of chart formed in a plane mirror kept at distance 2 m in front of him. At what distance is the chart seen by the patient? 


An object is placed (i) asymmetrically (ii) symmetrically, between two plane mirrors inclined at an angle of 50°. Find the number of images formed.


Prove geometrically that when plane mirror turns through a certain angle, the reflected ray turns through twice the angle.


Calculate the number of images formed in two plane mirrors, when they are held at the angle of (i) 72° (ii) 36°.


A boy stands 4 m away from the plane mirror. If the boy moves `1/2` m towards the mirror, what is now the distance between the boy and his image? Give a reason for your answer. 


An insect is sitting in front of a plane mirror at a distance of one meter from it.

  1. Where is the image of insect formed?
  2. What is the distance between insect and its image?
  3. State any two characteristics of image formed in a plane mirror.

Select the correct option:

If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will:


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