the radius of curvature of a concave mirror is 20cm, its focal length will be :
Answers
Answered by
35
hi mate
here is ur answer⬇️⬇️⬇️
radius of curvature R = 20cm
➡️R= 2f
20/2=f
➡️f=10 cm
I hope this will help you....
⚛️mark as brainliest ⚛️
here is ur answer⬇️⬇️⬇️
radius of curvature R = 20cm
➡️R= 2f
20/2=f
➡️f=10 cm
I hope this will help you....
⚛️mark as brainliest ⚛️
Answered by
19
focal length is half of radius of curvature and since it is concave mirror so the focal length is negative
f=R/2
f = - 10 cm
mark answer as brainlist
f=R/2
f = - 10 cm
mark answer as brainlist
Similar questions