Register to reply

Apparent and actual radius (Optics!)

by Healthycola
Tags: optics, perception
Share this thread:
Healthycola
#1
Jan22-13, 03:21 PM
P: 1
I know the radius of a circle. I'm taking pictures of the circle as I bring it closer to the camera. Obviously the radius is getting larger. I want to know what the relationship is to find this out? I know the distance from the camera that the circle is at all times.
Phys.Org News Partner Physics news on Phys.org
Mapping the optimal route between two quantum states
Spin-based electronics: New material successfully tested
Verifying the future of quantum computing
jtbell
#2
Jan22-13, 03:26 PM
Mentor
jtbell's Avatar
P: 11,626
I think the concept you're looking for is linear magnification a.k.a. transverse magnification:

http://hyperphysics.phy-astr.gsu.edu...ensdet.html#c2


Register to reply

Related Discussions
Actual vs percieved depth. optics question Introductory Physics Homework 1
Optics [refraction] - What is the actual angle from the surface of the water Introductory Physics Homework 4
Actual truck speed (geometric optics) Introductory Physics Homework 6
Special relativity and apparent, actual and synchronized positions Special & General Relativity 1
Apparent & Actual Depth Introductory Physics Homework 7