A boy looks at the image of an object in a plane mirror. He observes two images, a main bright one and the other faint. The observed images result from

Assessment: JAMB UTME - Physics - 1990 Subject: Physics

Question 1 Report

A boy looks at the image of an object in a plane mirror. He observes two images, a main bright one and the other faint. The observed images result from
Answer Details
When a boy looks at the image of an object in a plane mirror, he observes two images, a main bright one and the other faint. The observed images result from reflection only. The main bright image is the result of regular reflection, where light rays are reflected from the smooth surface of the mirror and the reflected rays maintain their parallel paths. The faint image is the result of irregular or diffused reflection, where light rays are reflected in different directions due to the unevenness of the mirror's surface, and some of these rays may reach the boy's eye, forming a faint and blurred image. Therefore, the correct option is "reflection only".

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