What type of lens is used in magnifying glass?
- APlano-concave lens
- BConvex lens
- CConvex mirror
- DConcave lens
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (b) Convex lens
Explanation
A magnifying glass uses a convex lens, which is thicker at the centre and converges light rays.
When the object is within the focal length, it forms an enlarged, erect virtual image.
A concave lens diverges light and gives a diminished image, so it cannot magnify.