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A ray of light falls on a plane mirror. When the mirror is turned, about an axis which is at right angle to the plane of the mirror through 20º the angle between the incident ray and new reflected ray is 45º. The angle between the incident ray and original reflected ray was therefore : 
  • a)
    85º    
  • b)
    25º or 85º    
  • c)
    25º    
  • d)
    45º
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A ray of light falls on a plane mirror. When the mirror is turned, abo...
If mirror is turned, about an axis perpendicular to plane of mirror, then there will be no change in incident angle and reflected angle so angle between incident & reflected rays after rotation will be same as before
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Most Upvoted Answer
A ray of light falls on a plane mirror. When the mirror is turned, abo...
The sentence appears to be incomplete. It seems to be describing a situation involving a ray of light falling on a plane mirror and the mirror being turned about an axis at a right angle to the plane of the mirror. However, the sentence does not provide any information about what happens when the mirror is turned through 20. Please provide additional information or clarify the question so that a proper response can be given.
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A ray of light falls on a plane mirror. When the mirror is turned, about an axis which is at right angle to the plane of the mirror through 20º the angle between the incident ray and new reflected ray is 45º. The angle between the incident ray and original reflected ray was therefore :a)85º b)25º or 85º c)25º d)45ºCorrect answer is option 'D'. Can you explain this answer?
Question Description
A ray of light falls on a plane mirror. When the mirror is turned, about an axis which is at right angle to the plane of the mirror through 20º the angle between the incident ray and new reflected ray is 45º. The angle between the incident ray and original reflected ray was therefore :a)85º b)25º or 85º c)25º d)45ºCorrect answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A ray of light falls on a plane mirror. When the mirror is turned, about an axis which is at right angle to the plane of the mirror through 20º the angle between the incident ray and new reflected ray is 45º. The angle between the incident ray and original reflected ray was therefore :a)85º b)25º or 85º c)25º d)45ºCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A ray of light falls on a plane mirror. When the mirror is turned, about an axis which is at right angle to the plane of the mirror through 20º the angle between the incident ray and new reflected ray is 45º. The angle between the incident ray and original reflected ray was therefore :a)85º b)25º or 85º c)25º d)45ºCorrect answer is option 'D'. Can you explain this answer?.
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