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An extended object is placed at point O, 10 cm in front of a convex lens L1 and a concave lens L2 is placed 10 cm behind it, as shown in the figure. The radii of curvature of all the curved surfaces in both the lenses are 20 cm. The refractive index of both the lenses is 1.5. The total magnification of this lens syStatement is;
  • a)
    0.4
  • b)
    0.8
  • c)
    1.3
  • d)
    1.6
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
An extended object is placed at point O, 10 cm in front of a convex le...

So,

So, v = -20 cm
and 
So, v'= -12 cm
So total magnification = 
= 0.8
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An extended object is placed at point O, 10 cm in front of a convex lens L1 and a concave lens L2 is placed 10 cm behind it, as shown in the figure. The radii of curvature of all the curved surfaces in both the lenses are 20 cm. The refractive index of both the lenses is 1.5. The total magnification of this lens syStatement is;a)0.4b)0.8c)1.3d)1.6Correct answer is option 'B'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about An extended object is placed at point O, 10 cm in front of a convex lens L1 and a concave lens L2 is placed 10 cm behind it, as shown in the figure. The radii of curvature of all the curved surfaces in both the lenses are 20 cm. The refractive index of both the lenses is 1.5. The total magnification of this lens syStatement is;a)0.4b)0.8c)1.3d)1.6Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An extended object is placed at point O, 10 cm in front of a convex lens L1 and a concave lens L2 is placed 10 cm behind it, as shown in the figure. The radii of curvature of all the curved surfaces in both the lenses are 20 cm. The refractive index of both the lenses is 1.5. The total magnification of this lens syStatement is;a)0.4b)0.8c)1.3d)1.6Correct answer is option 'B'. Can you explain this answer?.
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