If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object

Assessment: JAMB UTME - Physics - 2016 Subject: Physics

Question 1 Report

If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object
Answer Details
If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object is doubled. In a pinhole camera, light from an object passes through a small hole (pinhole) and forms an inverted image on a screen or film at the back of the camera. The size of the image formed on the screen depends on the distance between the object and the pinhole. When the distance between the object and the pinhole is halved, the angle of the light rays from the object that reach the pinhole is doubled. As a result, the size of the image formed on the screen is also doubled. Therefore, the correct option is "Is doubled".

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