The focus of a parabolic mirror is at a distance of 6cm from its vertex. if the mirror is 20cm deep,find it's diameter.
Answers
Answered by
8
focus (a,0)
y2=4ax
y2=4*6*x
y2=24x ...........(1)
Eq of a parabolic reflector
y2=24x
y2=24×20
y2=480
Diameter AB =43.81
y2=4ax
y2=4*6*x
y2=24x ...........(1)
Eq of a parabolic reflector
y2=24x
y2=24×20
y2=480
Diameter AB =43.81
Similar questions