if angle between two plane mirror is 120° the calculate the number of images formed.
plz tell me answer
Answers
Answer:
Given: An object is kept between two plane mirrors inclined at an angle 120 from each other
To find the ratio of number of images which are formed if the object is not on the bisector and on the bisector
Solution:
If there are two plane mirrors inclined to each other at an angle θ, the number of images of a point object formed are determined as follows:
If (
θ
360
∘
) is odd integer (say m) number of images formed
n=m, if the object is not on the bisector of mirrors
n=(m–1), if the object is on the bisector of mirrors.
So, when θ=120
∘
, we get
m=
120
360
=3
So,
number of images which are formed if the object is on the bisector
number of images which are formed if the object is not on the bisector
=
3−1
3
=
2
3
Answer:
2 images will be formed
Explanation:
2 images will be formed