how do you verify experimentally that the length of a convex lens is increased when it is kept in water?
Answers
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Answer:
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :i) Take a cylindrical glass tumbler whose height is much greater than the focal length of the lens and fill it with water.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :i) Take a cylindrical glass tumbler whose height is much greater than the focal length of the lens and fill it with water.ii) Keep a black stone at the bottom of the vessel.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :i) Take a cylindrical glass tumbler whose height is much greater than the focal length of the lens and fill it with water.ii) Keep a black stone at the bottom of the vessel.iii) Now dip the lens into water using circular lens holder such that it is at a distance which is less than or equal to focal length of the lens in air.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :i) Take a cylindrical glass tumbler whose height is much greater than the focal length of the lens and fill it with water.ii) Keep a black stone at the bottom of the vessel.iii) Now dip the lens into water using circular lens holder such that it is at a distance which is less than or equal to focal length of the lens in air.iv) Now see through the lens to have a view of the black stone.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :i) Take a cylindrical glass tumbler whose height is much greater than the focal length of the lens and fill it with water.ii) Keep a black stone at the bottom of the vessel.iii) Now dip the lens into water using circular lens holder such that it is at a distance which is less than or equal to focal length of the lens in air.iv) Now see through the lens to have a view of the black stone.v) Now increase the height of the lens till you are not able to see the stone’s image.
Aim : To prove that the focal length of a convex lens is increased when it is kept in water.Apparatus: Convex lens of known focal length, circular lens holder, tall cylindrical glass tumbler, black stone, water.Procedure :i) Take a cylindrical glass tumbler whose height is much greater than the focal length of the lens and fill it with water.ii) Keep a black stone at the bottom of the vessel.iii) Now dip the lens into water using circular lens holder such that it is at a distance which is less than or equal to focal length of the lens in air.iv) Now see through the lens to have a view of the black stone.v) Now increase the height of the lens till you are not able to see the stone’s image.vi) When the lens is dipped to a height which is greater than the focal length of lens in air, we are able to see the image. Showing that focal length of the lens has increased water.
Explanation:
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