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Which effect is missed if the submerged part of a pencil is shown straight without displacement?

Answer and explanation

Correct answer: Refraction

The governing concept is refraction at the water–air boundary. Light travels at different speeds in water and air, so it bends when leaving one medium and entering the other. A partly submerged pencil may therefore appear shifted or bent at the surface even though it is physically straight. Drawing the underwater portion in one uninterrupted line omits this displacement cue. Thus option B is correct; reflected light, symmetry, and negative space are not the specific effect being tested.

Related tags

Object-ObservationSubmerged-PencilRefractionWaterObject ObservationDrawing BasicsArt EducationClass 9 Mcq

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