An object high is placed in front of a convex lens

PHYSICS · Subjective · GCSE · Physics · Waves · Waves

Problem

An object 3.0 cm3.0\,\text{cm} high is placed 20 cm20\,\text{cm} in front of a convex lens. The lens forms an image 40 cm40\,\text{cm} on the other side. Calculate the height of the image.

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