- #1
zhen
- 48
- 0
the question is:
a mircroscope is focused on a black dot. when a 1.00-cm-thick piece of plastic is placed over the dot, the microscope objective has to be raised 0.40 cm to bring the dot back into focus. what is the index of refraction of the plastic...
I spent a lot of time on this question, but still can not solve it.
These are what i got so far:
N=(sinA/sinP)=(5/3)*(cosA/cosP)..
I really need some help for this question...
a mircroscope is focused on a black dot. when a 1.00-cm-thick piece of plastic is placed over the dot, the microscope objective has to be raised 0.40 cm to bring the dot back into focus. what is the index of refraction of the plastic...
I spent a lot of time on this question, but still can not solve it.
These are what i got so far:
N=(sinA/sinP)=(5/3)*(cosA/cosP)..
I really need some help for this question...