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Which one of the following statements is correct for a plane mirror?
  • a)
    Its focal length is zero.
  • b)
    The size of the image of an object placed in front of the mirror is slightly less than that of the object.
  • c)
    The image is virtual, erect and laterally inverted.
  • d)
    Its focal length is 200 cm
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which one of the following statements is correct for a plane mirror?a)...
A virtual image is a copy of an object formed at the location from which the light rays appear to come. Plane mirrors are the only type of mirror for which a real object always produces an image that is virtual, erect and of the same size as the object.
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Most Upvoted Answer
Which one of the following statements is correct for a plane mirror?a)...
Understanding Plane Mirrors
A plane mirror is a flat reflective surface that produces images through the reflection of light. Let's explore why option 'C' is the correct statement regarding plane mirrors.
Image Characteristics
- Virtual Image: The image formed by a plane mirror cannot be projected onto a screen, as it appears to be behind the mirror. This type of image is called virtual.
- Erect Image: The image retains the same orientation as the object. For instance, if you raise your right hand, the image in the mirror raises its right hand as well.
- Laterally Inverted: The image is reversed from left to right. This means that a person facing a mirror will see their left side appearing as the right side in the reflection.
Why Other Options Are Incorrect
- Option A: "Its focal length is zero."
- This is misleading; a plane mirror does not have a focal point since it reflects parallel rays back parallel, making its focal length effectively infinite.
- Option B: "The size of the image of an object placed in front of the mirror is slightly less than that of the object."
- This is incorrect. The size of the image in a plane mirror is equal to the size of the object.
- Option D: "Its focal length is 200 cm."
- This is also incorrect, as plane mirrors do not have a measurable focal length like concave or convex mirrors.
Conclusion
In summary, option 'C' accurately describes the properties of the image formed by a plane mirror. The image is virtual, erect, and laterally inverted, making it the correct choice among the options provided.
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Which one of the following statements is correct for a plane mirror?a)Its focal length is zero.b)The size of the image of an object placed in front of the mirror is slightly less than that of the object.c)The image is virtual, erect and laterally inverted.d)Its focal length is 200 cmCorrect answer is option 'C'. Can you explain this answer?
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Which one of the following statements is correct for a plane mirror?a)Its focal length is zero.b)The size of the image of an object placed in front of the mirror is slightly less than that of the object.c)The image is virtual, erect and laterally inverted.d)Its focal length is 200 cmCorrect answer is option 'C'. Can you explain this answer? for Defence 2025 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Which one of the following statements is correct for a plane mirror?a)Its focal length is zero.b)The size of the image of an object placed in front of the mirror is slightly less than that of the object.c)The image is virtual, erect and laterally inverted.d)Its focal length is 200 cmCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is correct for a plane mirror?a)Its focal length is zero.b)The size of the image of an object placed in front of the mirror is slightly less than that of the object.c)The image is virtual, erect and laterally inverted.d)Its focal length is 200 cmCorrect answer is option 'C'. Can you explain this answer?.
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