Question

An object is placed 15cm from a convex mirror and the radius of curvature is 90cm.calculate the image position and the magnification with diagram​

Answer 1

Answer:

f=radius of curvature/2 then f is +45 cm, u is -15cm,,, 1/f=1/v+1/u ,,,, 1/45=1/v+(-1/15) , 1/45+1/15=1/v ,,,1/v= 1+3/45 ,1/v=4/45 then v is 45/4 cm ............. magnification =-v/u , m= -(45/4)/-15 then m is +1/4 means image form by convex mirror is virtual erect and small in size