Author Question: A container of flint glass (n = 1.66) holds a small quantity of benzene (n = 1.501). What is the ... (Read 153 times)

mcmcdaniel · **on:** Jul 28, 2018

A container of flint glass (n = 1.66) holds a small quantity of benzene (n = 1.501). What is the critical angle for internal reflection of a ray in the liquid when it is incident on the liquid-to-glass surface?
a. 89.5
b. 64.7
c. 41.1
d. The critical angle does not occur in this case.

Question 2

A 2.00-kg copper rod is 40.00 cm long at 23C. If 50,000 J are transferred to the rod by heat, what is its change in length? (ccopper = 387 J/kgC and acopper = 17 106/C)
a. 0.022 cm
c. 0.055 cm
b. 0.044 cm
d. More information is needed.