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Water is the only substance found naturally in all three states on Earth's surface.
Did you know?
Water is the only substance found naturally in all three states on Earth's surface.
Two thin lenses are of the same focal lengths (), but one is convex and the other one is concave. When they are placed in contact with each other, the equivalent focal length of the combination will be:
To solve this problem, we need to find the equivalent focal length of a combination of a convex lens and a concave lens placed in contact.Given:ā¢ Focal length of the convex lens ā¢ Focal length of the concave lens When two lenses are placed in contact, the formula for the equivalent focal length
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