Answer: 33.69 degrees
Explanation:
Given
Distance between the two mirrors, = 6 cm
Length of the two mirrors, = 24 cm
Assuming the laser is shone from just clear of the left edge of the bottom mirror,
a)
Tan L = (O/A)
Tan L = (6 / 12)
Tan L = 0.5
L = Tan^-1 (0.5)
L = 26.57 degrees
(90 - 26.57) = 63.43 deg. to the normal.
Tan L = (6 / [24/6])
Tan L = (6 / 4)
Tan L = 1.5
L = Tan^-1 (1.5)
L = 56.31 degrees
(90 - 56.31) = 33.69 deg. to the normal.
Thus, the angle at which, with respect to the mirror, the laser beam hits the mirrors in each way is 33.69 degrees
Answer:
86degrrss
Explanation:
tan L =BC/AB
= 3/12 = 1/4
L= tan^-1 0.25
=4.0 degrees
= 90-4= 86degrees
