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Class 10 Science Medium Mcq English Medium

In Example 9.4 of the chapter (convex lens, f = +10 cm, object h = 2.0 cm at u = -15 cm), the calculated image distance v is

Question
In Example 9.4 of the chapter (convex lens, f = +10 cm, object h = 2.0 cm at u = -15 cm), the calculated image distance v is
v = -15 cm
v = +10 cm
v = +30 cm
v = -30 cm
Answer
v = +30 cm
Detailed Explanation
Using the lens formula 1/v = 1/u + 1/f, the chapter calculates v = +30 cm, so the image forms 30 cm on the other side of the lens.
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