1.

abtained? FI10 f a convex lens of focal length 20 cm.mcipal axa of the object from the lens is 30 cm. ByI object is placed perpendicular to theis of a c450 cm tallconalculation determine) the position anda the size of the image formed

Answer»

Given :height of object=h0=5cmfocal length of lens=10cmobject distance=-30cm after sign conventions.image distance=?By lens formula :1/f=1/v-1/u1/v=1/f+1/u=1/10-1/30=3-1/302/30v=30/2= 15cmmagnification=m=v/um=15/-30 =-1/2= -0.5cmm=hi/hohi=mxho=-0.5x 5= -2.5cmsThus object is placed beyond C and image formed is in between F and c.Inverted, real and diminished.



Discussion

No Comment Found

Related InterviewSolutions