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X is thicker in the middle than at the edges, whereas, Y is thicker at the edges than in the middle. Identify ‘X’ and ‘Y’.
  • a)
    X = concave lens; Y = convex lens
  • b)
    X = convex lens; Y = concave lens
  • c)
    X = plane lens; Y = convex lens
  • d)
    X = concave lens; Y = plane lens
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
X is thicker in the middle than at the edges, whereas, Y is thicker at...
When the lens is thicker in the middle than at the edges, then it is convex lens. When the lens is thicker at the edges than in the middle, then it is concave lens. Therefore, X = convex lens, and Y = concave lens.
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Community Answer
X is thicker in the middle than at the edges, whereas, Y is thicker at...
Explanation:

Convex and Concave Lenses:
- A convex lens is thicker at the center and thinner at the edges. It causes parallel rays of light to converge to a focal point.
- A concave lens is thinner at the center and thicker at the edges. It causes parallel rays of light to diverge.

Identification of X and Y:
- In the given scenario, X is described as being thicker in the middle than at the edges. This characteristic matches with a convex lens.
- On the other hand, Y is described as being thicker at the edges than in the middle. This matches with the description of a concave lens.
Therefore, based on the thickness profile provided in the question, we can identify X as a convex lens and Y as a concave lens.
Therefore, the correct identification is:

X = convex lens; Y = concave lens
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X is thicker in the middle than at the edges, whereas, Y is thicker at the edges than in the middle. Identify ‘X’ and ‘Y’.a)X = concave lens; Y = convex lensb)X = convex lens; Y = concave lensc)X = plane lens; Y = convex lensd)X = concave lens; Y = plane lensCorrect answer is option 'B'. Can you explain this answer?
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