An object 5 cm long and a pencil 10 cm long are placed in front of a pinhole camera such that their images have the same length.Find the ratio of the distances of object from the pinhole to that of the pencil?

Open in App

Solution

Suggest Corrections

Similar questions

Q. In a pinhole camera, the image of height 6 cm is formed at a distance of 10 cm. If the object is situated at a distance of 5 cm, the height of the object is ___ cm.

Q. A pinhole camera is a camera such that light from an object simply passes through a tiny hole into a dark box, and an image is projected onto the other side of the box. When a pinhole camera is used to produce an image of a distant object, what are the characteristics of the image?

In a pinhole camera, the image of height 6 cm is formed at a distance of 10 cm. If the object is situated at a distance of 5 cm, the height of the object is:

Q. A tree, which is 200 m away from the pinhole, produces an image of height 1cm, in a pinhole camera of width 20 cm. Find the height of the tree.

Q. Two pinholes

1.5 mm

apart are placed in front of a source of light of wavelength

5.5 \times 10^{- 5} cm

and seen through a telescope with its objectives stopped down to a diameter of

0.4 cm .

Find the maximum distance from the telescope at which the pinholes can be resolved.

Join BYJU'S Learning Program