The radius of curvature of a spherical mirror is 40 cm.what is its focal length
Answers
Answered by
16
R=40cm
R=2f
40=2f
40/2=f
20cm=f
R=2f
40=2f
40/2=f
20cm=f
Answered by
4
Answer:
f=r/2
f=40/2
f=20cm
hence focal length =20cm
Similar questions