Question

Relation between Magnification[m],object distance[u],focal length[f] of a spherical mirror is.

Answer 1

Answer:

magnification = -v / u and magnification = he/ ho

Explanation:

m is the magnifiation

v is image distance

u is the object distance

he is the height of the image formed

ho is height of the object

therefore

• m= -v/u
• m= he/ho

thereofe we can conclude.

• -v/u = he/ho =m

ans if you are given magnifiation and asked for focal length then...

you can form a linear equation by using

m=-v/u

m×u = -v

and then by using mirror formula

1/f= 1/v +1/u

you can replace any of the values of v or u you'll get the answer