Optical effect of a convex lens, c 1990s.

Optical effect of a convex lens, c 1990s.
3 4 c m
40cm
actual image size: 32cm x 26cm

Description

'If a convex lens is held near an object, the object looks bigger because the lens bends the rays of light inwards. The eyes trace the light rays back in straight lines and see a 'virtual' image that is magnified'.

© Science Museum / Science & Society Picture Library

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