Can a virtual image be photographed by a camera ?

Photograph of the ground are taken form an air-craft ,flying at an altitude of 2000 m by a camera with a lens of focal length 50 cm . The size of the film in the camera is 18xx18cm .What area of the ground can be photography by this camera at any one time.

A curved surface of radius R separates two medium of refractive indices mu_(1) "and" mu_(2) as shown in figures A and B . Choose the correct statement(s) related to the virtual image formed by object O placed at a distance x, as shown in figure

The focal length of the lens in a photographic camera is 5cm. what is the power of the lens?

Assertion:Image formed by concave lens is not always virtual. Reason:Image formed by a lens is real if the image is formed in the direction of ray of light with respect to the lens.

Use the mirror equation to deduce that: (a) an object placed between f and 2f of a concave mirror produces a real image beyond 2f. (b) a convex mirror always produces a virtual image independent of the location of the object. (c) the virtual image produced by a convex mirror is always diminished in size and is located between the focus and the pole. (d) an object placed between the pole and focus of a concave mirror produces a virtual and enlarged image.

Use the mirror equation to deduce that: (a) An object placed between f and 2f of a concave mirror produces a real image beyond 2f. (b) A convex mirror always produce a virtual image independent of the location of the object. ( c) The virtual image produced by a convex mirror is always diminished in size and it located between the focus and the pole.

A man washign to get a picture of a Zebra photographed a white donkey after fitting a glass with black streaks onto the objective of his camera.

Answer the following questions: (a) You have learnt that plane and convex mirrors produce virtual images of objects. Can they produce real images under some circumstances? Explain.