An object is placed in front of two plane mirrors inclined at an angle of 0o. If the total number of images formed is 7, Find the value of (theta)
-
A.
30o -
B.
45o -
C.
51o -
D.
90o
Correct Answer: Option B
Explanation
Number of image = (frac{360}{theta}) -1
7 = (frac{360}{theta}) -1
thus,(theta) = 45o