Archive
6th of March 2017
Physics
Q:

Name the type of lens we use to obtain the image of an object having the following magnifications m in new cartesian sign convention


m positive but less than 1

m positive but more than one

m negative but less than one

Draw a ray diagram to justify your answer for m positive and more than one

Nikita Vatsa - CBSE - Class X

Monday, March 06, 2017 at 18:21:PM

A:

Hi,

Magnification +ve but > 1 ⇒ Image and object both are erect and concave lens is used

Magnification +ve but < 1 ⇒ Image  and object both are erect and convex lens is used

Magnification -ve but <1  ⇒ Image  is diminished

Monday, March 06, 2017 at 18:46:PM