Question

If the magnification in a pinhole camera is 0.5 and the height of the object is 30 cm, then what is the height of the image?

Answer 1

Answer:

The answer will be 15cm.

Explanation:

Like every optical device, magnification in pinhole camera is given as,

                                  =  $\frac{H_{i}}{H_{o}}$ or $\frac{Height of image}{Height of object}$;

Hence, using magnification formula and given things i.e,

       M = 0.5;

       Ho or Height of object = 30 cm;

we can conclude that;

     = 0.5 = $\frac{H_{i}}{30}$;

     $H_{i}$ or height of image = 0.5 * 30;

                                          = 15 cm;

That's all.