Pin hole camera

Image formed by a pinhole camera is

• (a) erect

• (b) inverted

• (c) sometimes erect, sometimes inverted

• (d) none of these

The pinhole image of the sun is

• (a) circular

• (b) long

• (c) sometimes long sometime circular

• (d) none of these

Image formed by a pinhole camera is _________ down.

• Upside

• Inside

• sideways

• None

The working of a pinhole camera is based on the property of_________ propagation of light.

• Circular

• Rectilinear

• Rotational

• curvilinear

The image formed by a pinhole camera is erect.

• True

• False

The pinhole image of the sun is rectangular.

• True

• False

Pin hole camera forms

• real image on screen

• inverted images

• smaller size objects

• all the above

Factors affecting size of image in pin-hole camera

• Distance between screen and pin-hole

• distance between pin-hole and object

• distance between screen and object

• both (a) and (b)

Which of the following act as pinhole in the Natural Pinhole Camera?

• Leaves acts as pinhole

• Gaps between the leaves

• Water droplets

• None of these

Which of the following is true about Natural Pinhole Camera?

• (a) The circular patches of lights formed on the ground are examples of Images

• (b) The circular patches are pinhole images of the sun

• (c)we see circular images of the Sun irrespective of the irregular shapes of the gaps between the leaves

• (d) All the above