How can I calculate the focal point of concave mirror?

1 Answer
Feb 16, 2016

f=R/2
f=(i*o)/(i+o)

Explanation:

"f:focal point"
"R:the center of curvature"
"i:distance between image and vertex(mirror's center)"
"o: distance between object and vertex"
f=R/2
"or"
1/f=1/(o)+1/i
1/f=(i+o)/(i*o)
f=(i*o)/(i+o)