The critical angle for a particular type of glass is 39.0. What is the index of refraction of the glass?
A)
1.52
B)
1.55
C)
1.57
D)
1.59
E)
1.50
Question 2
The electric potential of a charge distribution is given by V(x, y) = 2xy - x2 - y. At which point is the electric field equal to zero?
A)
x = 0.5, y = 1
B)
x = 1, y = 1
C)
x = 1, y = 0.5
D)
x = 0.5, y = 0.5
E)
x =0, y = 0