[tex]<b>Heya brainly mates</b>[/tex]
Pls help me !!!!!☺☺☺☺☺
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[tex]<b>Heya brainly mates</b>[/tex]
Pls help me !!!!!☺☺☺☺☺
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We know that for light the angle of incidence(i) should be equal to angle of emergence(e)
Hence angle of emergence (e) should also be 40° and 50° respectively.
For glass the refractive index is 1.5, hence
sin i/sin r = 1.5
=> sin r = sin i /1.5
a) For i= 40
Sin r = sin 40/1.5 = 0.64/1.5 = 0.428
=> r = sin⁻¹ 0.428 = 25.37°
b) for i = 50°
sin r = sin 50/1.5 = 0.766/1.5 = 0.51
=> r = sin⁻¹ 0.51 = 30.7°
Hence the value of r should be 25.37° and 30.7° respectively.