W Type Questions
51. What is a lens ? Name the two types of lenses. Name any five things which we lenses.
(6) What kind of lens is used as a magnifying glasa?
( Which type of reflector la wed in ear headlights for producing a parallel beam of light?
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The two main types of lenses are:
Convex Lens (Converging)
Concave Lens (Diverging)
convex lens
A magnifying glass is a convex lens used to make an object appear much larger than it actually is. This works when the object is placed at a distance less than the focal length from the lens.
Concave mirror which is bulged from outside to reflect more light and is used in cars relectors.
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