What determines the size of a pinhole camera image?

What is the size of our galaxy?

The image formed by a pinhole camera is

What is the size of particulates?

Give reason The image formed by a mirror is virtual whereas the image formed by a pinhole camera is real.

Draw a labelled ray diagram for the formation of image by a convex lens of focal length 15 cm when the object is placed at a distance of 25 cm from the lens. Determine the size of the image formed, if size of the object is 4 cm.

A graphic designer created an image for a school banner. He uses this image for small and medium banners. To produce a large banner, the designed increase the size of the image by 12.5% to 18 inches tall by 22.5 inches wide. What was the size of the original image?

What is the size of prokaryotic ribosomes?

An object of size 2cm is placed at a distance of 40cm from a glass lens, close to the principal axis of the lens, and the lens forms an image of size 2cm . What is the size of the image and what type of image is formed if the lens and the object, in the same arrangement, is immersed into water ? The refractive index of the lens 1.5 , and that of the water is 1.33 .

A plane mirror is placed at a distance of 50 cm from a concave mirror of focal length 16 cm. Where should a short object be placed between the mirrors and facing both the mirrors so that its virtual image in the plane mirror coincides with the real image in concave mirror? What is the ratio of the sizes of the two images?

Explain how an image is formed in a pinhole camera. Write the characteristics of the image formed with the help of a diagram.