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A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of :
  • a)
    20cm from the lens, it would be a real image.
  • b)
    30cm from the lens, it would be a real image.
  • c)
    30cm from the plane mirror, it would be a virtual image.
  • d)
    20cm from the plane mirror, it would be a virtual image.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A point object is placed at a distance of 60 cm from a convex lens of ...

Using lens formula,

⇒ v1 = +60 cm Distance of image forwed by lens from Mirror,
d = v1 − 40 = 60 − 40 = 20 cm
The final image will be formed at a distance of 20 cm from Mirror.
Distance of image from lens in 20 cm.
Again, light will refract from lens
Using lens formula,

Hence, the image will be virtual and formed at a distance of 60 from lens or 20 from mirror.
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A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of :a)20cm from the lens, it would be a real image.b)30cm from the lens, it would be a real image.c)30cm from the plane mirror, it would be a virtual image.d)20cm from the plane mirror, it would be a virtual image.Correct answer is option 'D'. Can you explain this answer?
Question Description
A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of :a)20cm from the lens, it would be a real image.b)30cm from the lens, it would be a real image.c)30cm from the plane mirror, it would be a virtual image.d)20cm from the plane mirror, it would be a virtual image.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of :a)20cm from the lens, it would be a real image.b)30cm from the lens, it would be a real image.c)30cm from the plane mirror, it would be a virtual image.d)20cm from the plane mirror, it would be a virtual image.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A point object is placed at a distance of 60 cm from a convex lens of focal length 30 cm. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of 40 cm from it, the final image would be formed at a distance of :a)20cm from the lens, it would be a real image.b)30cm from the lens, it would be a real image.c)30cm from the plane mirror, it would be a virtual image.d)20cm from the plane mirror, it would be a virtual image.Correct answer is option 'D'. Can you explain this answer?.
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