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An object placed at a distance of 16 cm from a convex lens produces an image of magnification m (m > 1). If the object is moved towards the lens by 8 cm then again an image of magnification m is obtained. The numerical value of the focal length of the lens is
- a)12 cm
- b)14 cm
- c)18 cm
- d)20 cm
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
An object placed at a distance of 16 cm from a convex lens produces an...
m = f/f+u
As magnification can be same for two diffeent values of u only if they are of opposite sign.
Most Upvoted Answer
An object placed at a distance of 16 cm from a convex lens produces an...
The magnification of an image formed by a convex lens is given by the formula:
m = -v/u
where m is the magnification, v is the image distance, and u is the object distance.
In this case, the object distance is given as 16 cm, so u = 16 cm.
Let's assume that the image distance is v cm.
Given that the magnification is m, we can write the equation as:
m = -v/16
Rearranging the equation, we get:
v = -16m
So the image distance is given by -16m.
Therefore, the image distance is -16m cm.
m = -v/u
where m is the magnification, v is the image distance, and u is the object distance.
In this case, the object distance is given as 16 cm, so u = 16 cm.
Let's assume that the image distance is v cm.
Given that the magnification is m, we can write the equation as:
m = -v/16
Rearranging the equation, we get:
v = -16m
So the image distance is given by -16m.
Therefore, the image distance is -16m cm.
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An object placed at a distance of 16 cm from a convex lens produces an image of magnification m (m > 1). If the object is moved towards the lens by 8 cm then again an image of magnification m is obtained. The numerical value of the focal length of the lens isa)12 cmb)14 cmc)18 cmd)20 cmCorrect answer is option 'A'. Can you explain this answer?
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An object placed at a distance of 16 cm from a convex lens produces an image of magnification m (m > 1). If the object is moved towards the lens by 8 cm then again an image of magnification m is obtained. The numerical value of the focal length of the lens isa)12 cmb)14 cmc)18 cmd)20 cmCorrect answer is option 'A'. 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 An object placed at a distance of 16 cm from a convex lens produces an image of magnification m (m > 1). If the object is moved towards the lens by 8 cm then again an image of magnification m is obtained. The numerical value of the focal length of the lens isa)12 cmb)14 cmc)18 cmd)20 cmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object placed at a distance of 16 cm from a convex lens produces an image of magnification m (m > 1). If the object is moved towards the lens by 8 cm then again an image of magnification m is obtained. The numerical value of the focal length of the lens isa)12 cmb)14 cmc)18 cmd)20 cmCorrect answer is option 'A'. Can you explain this answer?.
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