How far away from the pinhole should you move the screen to obt...

A pinhole camera has a small circular aperture of diameter D. Light from distant objects passes thro...

Suppose you have a pinhole camera which is 5 cm long between the hole and the film. You photograph a...

A pinhole camera is 15 cm in length,30 cm from an object.If the image is 4.4 cm tall,how high is the...