The surfaces of the sun glasses (goggles) are curved, yet their power may be zero. Why ?
Statement-I : Sun glasses have zero power even through their surfaces are curved. and Statement-II: Both surface of the sun glasses are curved in the same direction with same radii.
Assertion : Although the surfaces of a goggle lens are curved, it does not have any power. Reason : In case of goggles, both the curved surfaces have equal radii of curvature.
Assertion:Although the surfaces of goggle lens are curved, It does not have any power. Reason: In case of goggles, both the curved surfaces have equal radii of curvature and have centre of curvature on the same side.
Statement I: Although the surfaces of gogggle lengses are curved, it does not have any power. Statement II: In case of goggle, both the curved surfaces have equal radii of curvature and have center of curvature on the same side.
Why sunglasses have zero power ?
A solid hemispherical bowl of radius R, made of glass, is placed on a flat horizontal surface with its curved surface on the ground. A small object is placed under the hemisphere at the center of the curved surface. If an observer sees the object directly above the plane surface, Where will the object appear to be ?
When curved surface of a plane convex lens is silvered then the focal power of the lense is
