A 10 D lens used as a magnifier.Where should the object be placed to obtainmaximum angular magnfication for a normal eye (near point=25 cm)?

(a) An object is seen through a simple microscope of focal length 12cm . Find the angular magnification produced if the image is formed at the near point of the eye which is 25cm away from it. (b) A 10D lens is used as a magnifier. Where should the object be placed to obtain maximum angular magnification for a normal eye (near point = 25cm) ?

(a) An object is seen through a simple microscope of focal length 12cm . Find the angular magnification produced if the image is formed at the near point of the eye which is 25cm away from it. (b) A 10D lens is used as a magnifier. Where shold the object be placed to obtain maximum angular magnification for a nirmal eye (near point = 25cm) ?

A 20 D lens is used as a magnifier. Where should the object be placed to obtain maximum angular magnification? (Given, D=25 cm).

A 20 D lens is used as a magnifier. Where should the object be placed to obtain maximum angular magnification? (Given, D=25 cm).

Where should an object be placed in order of to use a convex lens as a magnifying glass?

A magnifying lens has a focal length of 10 cm. (a) Where should the object be placed if the image is to be 30 cm from the lens ? (b) What will be the magnification ?