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Question
Complete the following diagram and state what happens to the ray of light after refraction through the lens.
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Solution
A ray of light that passes through the principal focus or appears to pass through the principal focus, goes parallel to its principal axis.
RELATED QUESTIONS
Study the diagram shown in Fig. 5.56
what are the two other characteristics of the image?
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Describe how the distance of the image from the lens and the size of the image change as the object is moved towards F1.
In the following diagram ., the object and the image formed by the respective lenses are shown. Complete the ray diagram, and locate the focus. Find the focal length of the lens.
In the following diagram , the object and the image formed by the respective lenses are shown. Complete the ray diagram, and locate the focus. Find the focal length of the lens.
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Fig. shows two rays of light Op and OQ coming from an object at the bottom of a pond, incident on the water surface.
(a) Mark on the diagram
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(ii) The angle of refraction of ray Op,
(iii) The position of image of the object as seen from above.
(iv) An approximate path of the ray OQ.
(b) Explain, why do the rays of light change directions on passing from water to air.
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When does a ray of light falling on a lens pass through it undeviated?
