A convex lens forms a 10 times magnified image of an object. If the length of the object is 5 cm, determine the length of the image.
WBBSE
Class X
Physical Science
Light – Reflection and Refraction
02 Mark
2026
Magnification (m) = 10
Height of object (h₁) = 5 cm
Height of image (h₂) = ?
We know,
m = \frac{\text{h₂}}{\text{h₁}}
Therefore,
h₂ = m × h₁
= 10 × 5
= 50 cm
Hence, the length of the image is 50 cm.
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