Chapter 26. The refraction of light: lenses and optical instruments.

Problem 15.

n1 sin(20.3) = (1.00) sin(35)

then n1=1.65

Problem 27.

a) sin(theta_c) = 1/1.523

theta_c = 41.0

then the light will first exit at point B

b) exit at point A.

Problem 42.

1.48 sin(27) = 1.31 sin(theta_2) ==> theta_2 = 30.85

1.31 sin(23.14) = 1.48 sin(theta_4) ==> theta_4 = 20.4

Problem 44.

a) 1/di = 1/f - 1/d0 = 1/(-32cm) - 1/19cm ==> di = -12cm

b) m = -(di/d0) = 0.63

c) virtual

d) upright

e) reduced

Problem 51.

f1=35mm, f2=150mm

h0=1.60m, d0=9m

first obtain di = -1/d0+1/f

then use hi=-(di/d0) h0 to obtain hi