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 θ

Question 1 Report

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 $θ$

30o

45o

51o

90o

Answer Details

Number of image = $\frac{360}{θ}$ -1

7 = $\frac{360}{θ}$ -1

thus, $θ$ = 45o

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