A lens of focal length 10 cm is being used by a student in the laboratory as magnifying glass. His near point distance is 25 cm. What magnification is the student getting ?

Q. Alena of focal length 5 cm is being used by a student in the laboratory as a magnifying glass. His least distansd of distinct vision is 25cm. What magnification Is the student getting.

Q. A converging lens of focal length 6.25 cm is used as a magnifying glass. If near point of the observer is 25 cm from the eye and the lens is held close to the eye, then the magnification is :

Q.

A convex lens of focal length 15 cm is used as a magnifying glass.At what position from the lens should a textbook be placed to get a magnification of +2.00? (Assume lens to be at origin)

Q.

A man with normal near point (25 cm) reads a book with small print using a magnifying glass: a thin convex lens of focal length 5 cm.

(a) What is the closest and the farthest distance at which he should keep the lens from the page so that he can read the book when viewing through the magnifying glass?

(b) What is the maximum and the minimum angular magnification (magnifying power) possible using the above simple microscope?

Q. A man with normal near point $\left(25cm\right)$ reads a book with small point using a magnifying glass, a thin convex lens of focal length $5cm$.