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Problem 43 Hard Difficulty

The light beam in Figure P22.43 strikes surface 2 at the critical angle. Determine the angle of incidence,$\theta_{1}$.

Answer

$27.5^{\circ}$

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Liev B.

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Farnaz M.

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Jared E.

University of Winnipeg

Meghan M.

McMaster University

Video Transcript

sign off. A critical angle is equal to refractor. Minutes off air divided by affecting Knicks off the glass. Ah, there we could find her factory mitts off. A glass will be equal to one divided by sign or 45 42 Saudi. Stop shooting the particular angle. This gives us a perfect mix off the glass to be 1.4 line four on the reflected their refracted very fragmented angle at the surface surface. One is then angle a fraction. Musical to 90 minus 1 80 minus 60 minus 19 minus 42. Excuse us. Ah, immobile fracked. It angle to be 18 degrees. Then, using a snail's law, we could ride in one times. Ah, sign Gangloff. One musical to in to sign, uh, rectangle substituting rallies. And one is the one so that we can find a sign Better. One is substituting, ready for in two, which is a 1.4 night and effect angle. He's 18. Then we can just solve for theta one. We just won the seven point five degrees

Wesleyan University
Top Physics 103 Educators
LB
Liev B.

Numerade Educator

Farnaz M.

Other Schools

Jared E.

University of Winnipeg

Meghan M.

McMaster University