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A convex lens of focal length 20 cm produces images of the same magnification 2 when an object is kept at two distances x₁ and x₂ (x₁ > x₂) from the lens. The ratio of x₁ and x₂ is:(A) 5 : 3 (B) 2 : 1(C) 4 : 3 (D) 3 : 1 |
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Answer» Answer: HELLO! Explanation: Magnification is 2 If image is REAL, x 1
= 2 3f
If image is virtual, x 2
= 2 f
x 2
x 1
=3:1. |
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