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Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?
- a)−6.58 cm
- b)−8.41 cm
- c)−7.8 cm
- d)−9.6 cm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Find focal length of mirror that forms an image 6.2 cm behind mirror o...
Here, given that,
v=-6.2 and u=26
we have to find,f=?
So, we know,
1/f=(1/u)+(1/v)
1/f=(1/-6.2) + (1/26)
f=-8.41cm
Hence the correct answer is option B.
v=-6.2 and u=26
we have to find,f=?
So, we know,
1/f=(1/u)+(1/v)
1/f=(1/-6.2) + (1/26)
f=-8.41cm
Hence the correct answer is option B.
Most Upvoted Answer
Find focal length of mirror that forms an image 6.2 cm behind mirror o...
Using the mirror formula:
1/f = 1/v + 1/u
where:
f = focal length
v = image distance (negative because the image is behind the mirror)
u = object distance (positive because the object is in front of the mirror)
Plugging in the values:
1/f = 1/-6.2 + 1/26
1/f = -0.161 + 0.038
1/f = -0.123
f = -8.13 cm
Since the focal length cannot be negative, we take the absolute value:
f = 8.13 cm
Therefore, the focal length of the mirror is 8.13 cm.
1/f = 1/v + 1/u
where:
f = focal length
v = image distance (negative because the image is behind the mirror)
u = object distance (positive because the object is in front of the mirror)
Plugging in the values:
1/f = 1/-6.2 + 1/26
1/f = -0.161 + 0.038
1/f = -0.123
f = -8.13 cm
Since the focal length cannot be negative, we take the absolute value:
f = 8.13 cm
Therefore, the focal length of the mirror is 8.13 cm.
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Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. 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 Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. 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 Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. Can you explain this answer?.
Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. 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 Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. 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 Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror?a)−6.58 cmb)−8.41 cmc)−7.8 cmd)−9.6 cmCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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