Two plane mirrors intersect at right angles. A laser beam strikes the first of t

Question

Two plane mirrors intersect at right angles. A laser beam strikes the first of them at a point d = 14.0cm from their point of intersection, as shown in the figure (Figure 1) .

Part A

For what angle of incidence at the first mirror will this ray strike the midpoint of the second mirror (which is s= 28.8cm long) after reflecting from the first mirror?

SubmitMy AnswersGive Up

Provide FeedbackContinue

Figure 1 of 1

Two plane mirrors intersect at right angles. A laser beam strikes the first of them at a point d = 14.0cm from their point of intersection, as shown in the figure (Figure 1) .

Part A

For what angle of incidence at the first mirror will this ray strike the midpoint of the second mirror (which is s= 28.8cm long) after reflecting from the first mirror?

SubmitMy AnswersGive Up

Provide FeedbackContinue

Figure 1 of 1

Explanation / Answer

we have ?=?

while ?=90-?

tan?=14/14.4 =>?=44.190

=> incident angle to the first mirror:

angle=90-?=?=44.19

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.