please help in this
Dear Student,
The rectangular box A converges a parallel beam of light as it passes through it. So, the lens is converging in nature. Converging lenses are convex lenses. Hence, the rectangular box A must be a convex lens.
The rectangular box B diverges a parallel beam of light as it passes through it. So, the lens is diverging in nature. Diverging lenses are concave lenses. Hence, the rectangular box A must be a concave lens.
Regards
The rectangular box A converges a parallel beam of light as it passes through it. So, the lens is converging in nature. Converging lenses are convex lenses. Hence, the rectangular box A must be a convex lens.
The rectangular box B diverges a parallel beam of light as it passes through it. So, the lens is diverging in nature. Diverging lenses are concave lenses. Hence, the rectangular box A must be a concave lens.
Regards