An object 30 cm in front of a concave spherical mirror (f = 10 ...

[Melani1276]

An object 30 cm in front of a concave spherical mirror (f = 10 cm) is moved toward the mirror until it is 20 cm from it. Sketch ray diagrams for these cases and estimate the factor by which the image magnification changes.

Question 2

Jane's flashy boy friend has just given her a ring with a huge diamond. Jane, who has studied physics, measures the polarizing angle for the stone and finds that the polarizing angle is 62.97. The stone is
 a. fluoride, n = 1.560.
  b. crown glass, n = 1.517.
  c. spinel, n = 1.712.
  d. zircon, n = 1.960.
  e. diamond, n = 2.417.

[Moriaki]

Answer to Question 1

Increases by a factor of 2

Answer to Question 2

d

[Melani1276]

Excellent

[ttt030911]

Thanks for the timely response, appreciate it