physics lab 5 - 5.2.2(A 1 The nail shows as a silhouette of...

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5.2.2 (A) 1. The nail shows as a silhouette of itself in an upright fashion. The nail moves the same direction in the image that corresponds to the orientation and movement of the object. The silhouette shown as the image also seems to be reduced. 2. f = 1pm for a 7- diopter lens. 5.2.2 (B) 1. When viewing the silhouette of the nail against the light, the point of the pin’s image we see with our eyes seems to move in the opposite direction of the actual movement of the object. This suggests that the diverging rays of light coming from the pinhole are interrupted by the object placed too close to the lens of our eyes. This, in turn, creates a shadow on the retina which is upright but not focused. Although the objects shadow is in theory is supposed to be upright, the mind sees the image as inverted. This is why we see the image of the pin move in the opposite direction across the pinhole. The same concept was demonstrated in the CENCO eye model. The silhouette of the nail appeared as upright and unfocused on the back screen or retina of the eye. However, the mind was involved in processing any image and so we perceived the image to be
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This note was uploaded on 01/25/2011 for the course PHY 317k taught by Professor Kopp during the Spring '07 term at University of Texas.

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physics lab 5 - 5.2.2(A 1 The nail shows as a silhouette of...

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