Class 12 Exam > Class 12 Questions > A person is six feet tall. How tall must a ve...
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A person is six feet tall. How tall must a verticalmirror be if he is able to see his entire length?
- a)3 ft
- b)4.5 ft [2000]
- c)7.5 ft
- d)6 ft
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A person is six feet tall. How tall must a verticalmirror be if he is ...
To see his full image in a plane mirror a person
requires a mirror of at least half of his height.
requires a mirror of at least half of his height.
Most Upvoted Answer
A person is six feet tall. How tall must a verticalmirror be if he is ...
Explanation:
To see his entire length in the mirror, the person needs to see from the top of his head to the bottom of his feet. Since the person is six feet tall, the mirror needs to be tall enough to reflect his full height.
The mirror needs to be at least six feet tall to reflect the entire length of the person.
Since option D states that the mirror should be six feet tall, it is the correct answer.
Why the other options are incorrect:
a) 3 ft: This option is incorrect because a mirror that is only three feet tall would not be able to reflect the person's full height. The person would only be able to see half of his body in the mirror.
b) 4.5 ft: This option is incorrect because a mirror that is 4.5 feet tall would still not be able to reflect the person's full height. The person would only be able to see three-quarters of his body in the mirror.
c) 7.5 ft: This option is incorrect because a mirror that is 7.5 feet tall would be too tall and would extend beyond the person's height. The person would not be able to see his full height in the mirror.
In summary:
The correct answer is option D, which states that the mirror should be six feet tall. This height would allow the person to see his entire length in the mirror.
To see his entire length in the mirror, the person needs to see from the top of his head to the bottom of his feet. Since the person is six feet tall, the mirror needs to be tall enough to reflect his full height.
The mirror needs to be at least six feet tall to reflect the entire length of the person.
Since option D states that the mirror should be six feet tall, it is the correct answer.
Why the other options are incorrect:
a) 3 ft: This option is incorrect because a mirror that is only three feet tall would not be able to reflect the person's full height. The person would only be able to see half of his body in the mirror.
b) 4.5 ft: This option is incorrect because a mirror that is 4.5 feet tall would still not be able to reflect the person's full height. The person would only be able to see three-quarters of his body in the mirror.
c) 7.5 ft: This option is incorrect because a mirror that is 7.5 feet tall would be too tall and would extend beyond the person's height. The person would not be able to see his full height in the mirror.
In summary:
The correct answer is option D, which states that the mirror should be six feet tall. This height would allow the person to see his entire length in the mirror.
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A person is six feet tall. How tall must a verticalmirror be if he is able to see his entire length?a)3 ftb)4.5 ft [2000]c)7.5 ftd)6 ftCorrect answer is option 'A'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A person is six feet tall. How tall must a verticalmirror be if he is able to see his entire length?a)3 ftb)4.5 ft [2000]c)7.5 ftd)6 ftCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A person is six feet tall. How tall must a verticalmirror be if he is able to see his entire length?a)3 ftb)4.5 ft [2000]c)7.5 ftd)6 ftCorrect answer is option 'A'. Can you explain this answer?.
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