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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Draw a diagram to show the reflection of a light ray incident normally on a plane mirror. - Physics

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प्रश्न

Draw a diagram to show the reflection of a light ray incident normally on a plane mirror. 

आकृती
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उत्तर

AO is the incident ray

OB is the reflected ray

ON is the normal

∠AON is the angle of incidence

∠NOB is the angle of reflection.

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Images Formed by a Plane Mirrors
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
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 8

संबंधित प्रश्‍न

 Select the correct alternative

The angle between the incident ray and the ray reflected from the plane mirror is 70°. The angle of incidence will be :


The image formed by a plane mirror is : 


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? 


In the barber's shop, two plane mirrors are placed :


A ray of light strikes a plane mirror, such that the angle with the mirror is 20°. What is the value of angle of reflection? What is the angle between the incident ray and the reflected ray?


(a) What do you understand by the term lateral inversion?
(b) A printed card has letters PHYSICS. By drawing the diagram show the appearance of the letters. (No ray diagram is required).


What should be the minimum size of a plane mirror, so that a person 182 cm high can see himself completely?


What must be the minimum length of a plane mirror in which a person can see himself full length? Draw a diagram to justify your answer. Does the distance of a person from the mirror affect the above 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.

What do you mean by a focal point?

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