Physics
The diagram below shows a lens as a combination of a glass slab and two prisms.
(i) Name the lens formed by the combination.
(ii) What is the line XX' called?
(iii) Complete the ray diagram and show the path of the incident ray AB after passing through the lens.
(iv) The final emergent ray will either meet XX' at a point or appear to come from a point on XX'. Label the point as F. What is this point called?
Refraction Lens
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Answer
(i) The lens formed by the combination is a convex lens.
(ii) The line XX' is called the principal axis.
(iii) Below diagram shows the path of the incident ray AB after passing through the convex lens:
(iv) The point F is called a focal point.
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(i) Name the lens formed by the combination.
(ii) What is the line XX' called?
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