Author Question: A magnifier used for reading small print is shaped like a hemisphere 2.0 cm in radius, placed on top ... (Read 60 times)

piesebel · **on:** Jul 29, 2018

A magnifier used for reading small print is shaped like a hemisphere 2.0 cm in radius, placed on top of a cylinder of the same radius and 2.0 cm tall. The flat side of the magnifier is placed directly over the print on a book.

Where does the image of the print appear to be? (The index of refraction of the magnifier is 1.52.) A)

30.4 cm above the top of the magnifier
B)

12.7 cm above the top of the magnifier
C)

32.1 cm below the top of the magnifier
D)

12.5 cm below the top of the magnifier
E)

at the center of the hemisphere

Question 2

Suppose that the build-up of fatty tissue on the wall of an artery decreased the radius by 10. By how much would the pressure provided by the heart have to be increased to maintain a constant blood flow?

A)

48

B)

52

C)

50

D)

46

E)

54