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A biconvex lens has a radius of curvature of magnitude 20 cm. Which one of the
following options describe best the image formed of an object of height 2 cm placed 30
cm from the lens?
  • a)
    Real, inverted, height = 1 cm
  • b)
    Virtual, upright, height = 1 cm
  • c)
    Virtual, upright, height = 0.5 cm
  • d)
    Real, inverted, height = 4 cm
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A biconvex lens has a radius of curvature of magnitude 20 cm. Which on...
In general we have assumed μ = 1.5,
So, f = 20 cm and calculate v = 60 cm
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Most Upvoted Answer
A biconvex lens has a radius of curvature of magnitude 20 cm. Which on...


Explanation:

Given data:
Radius of curvature (R) = 20 cm
Object height (h) = 2 cm
Object distance (u) = -30 cm (as the object is placed 30 cm from the lens, on the left side)
Focal length (f) = R/2 = 10 cm

Determination of image characteristics:
- Since the object distance is negative, the object is placed on the same side as the incident light (left side).
- Using the lens formula: 1/f = 1/v - 1/u, where v is the image distance.
- Substitute the values: 1/10 = 1/v - 1/-30
- Solve for v: v = -15 cm
- The negative sign indicates that the image is formed on the same side as the object, making it a real image.

Magnification:
- Magnification (M) = -v/u
- Substitute the values: M = -(-15)/-30 = 0.5
- The negative sign indicates an inverted image.

Image characteristics:
- The image is real because it is formed on the same side as the object.
- The image is inverted because the magnification is negative.
- The height of the image is determined by the magnification: M = h'/h, where h' is the image height.
- Substitute the values: 0.5 = h'/2
- Solve for h': h' = 0.5 * 2 = 1 cm

Therefore, the correct answer is:
d) Real, inverted, height = 1 cm
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A biconvex lens has a radius of curvature of magnitude 20 cm. Which one of thefollowing options describe best the image formed of an object of height 2 cm placed 30cm from the lens?a)Real, inverted, height = 1 cmb)Virtual, upright, height = 1 cmc)Virtual, upright, height = 0.5 cmd)Real, inverted, height = 4 cmCorrect answer is option 'D'. Can you explain this answer?
Question Description
A biconvex lens has a radius of curvature of magnitude 20 cm. Which one of thefollowing options describe best the image formed of an object of height 2 cm placed 30cm from the lens?a)Real, inverted, height = 1 cmb)Virtual, upright, height = 1 cmc)Virtual, upright, height = 0.5 cmd)Real, inverted, height = 4 cmCorrect 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 biconvex lens has a radius of curvature of magnitude 20 cm. Which one of thefollowing options describe best the image formed of an object of height 2 cm placed 30cm from the lens?a)Real, inverted, height = 1 cmb)Virtual, upright, height = 1 cmc)Virtual, upright, height = 0.5 cmd)Real, inverted, height = 4 cmCorrect 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 biconvex lens has a radius of curvature of magnitude 20 cm. Which one of thefollowing options describe best the image formed of an object of height 2 cm placed 30cm from the lens?a)Real, inverted, height = 1 cmb)Virtual, upright, height = 1 cmc)Virtual, upright, height = 0.5 cmd)Real, inverted, height = 4 cmCorrect answer is option 'D'. Can you explain this answer?.
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