Grade 12Wave Optics

What is the formula for number of images formed by two plane mirrors when they are inclened at some particular angle

Kushagra

10 Years agoGrade 12

6 Answers

Himanshu

Approved Tutor Answer10 Years ago

when two mirrors are arranged at an angle theta then we evaluate the quantity 360/theta and find the following cases1. 360/theta=n=even then no of images =n-1

2.n is odd integer and object placed at bisector then number of images = n-1

Gaurav Kumar

9 Years ago

1.if 360/ theta is even ,no is 360/theta-1 ....2.if 360/theta is odd nd object is at angle bisector then also no is 360/theta-1 .....3.if 360/theta is odd nd object is not at angle bisector then no is 360/theta.

Sristy

8 Years ago

CASE 2:If1. $360 / \Theta = n = Odd$ 2. And object placed at bisector of the angle between the mirrorsthen only number of images = n-1then number of images = n - 1When two mirrors are arranged at an angle theta then we evaluate the quantity $360 / \Theta = n$ and find the following casesCASE 1: IF1. $360 / \Theta = n = even$

CASE 3 :

1. $360 / \Theta = n = Odd$ 2. And object is NOT placed at bisector of the angle between the mirrorsthen only number of images = n

A

8 Years ago

the formula for number of images formed by two plane mirrors when they are inclened at some particular angle

1. 360/theta-1 if there is an odd angle

2. 360/theta only if there is an even angle

Abhishek Kundu

8 Years ago

1:When 360/theta is even then no. of image = 360/theta-1...2:when 360/theta is odd then no. of image = 360/theta -1(for object on the angel bisector)......3:360/theta=odd then no. of image =360/theta(for object anywhere else).

Mani Prakash Tiwary

7 Years ago

360/theta =fractions , number of image = integers part of 360/theta , 360/theta odd and object at asymmetrical place image = 360/theta ; 360/theta =odd and object at symmetrical place image=360/theta-1;360/theta= even number of image= 360/theta -1