Question

If two plane mirrors are inclined at an angle of 90° to each other , how many images of an object are seen?

Answer 1

if twi plane mirrors are inclined at the 90 angel than 3 image made by two mirrir

Answer 2

Hey there!!!

If two plane mirrors are inclined at an angle of 90° to each other, then the number of images formed can be calculated using the formula,

n = 360°/Ф -1 (if  360/Ф is an even integer)

and ,
n = 360°/Ф  (if 360/Ф is an odd integer )

Now, the given angle in the question is,
Ф=90°

∴ n = 360/90 = 4

here n is even, so using the first formula, n = 4-1⇒ 3

So, the number of images formed would be 3.

HOPE IT HELPS!!!