Answer:

Explanation:
Given that,
The refractive index of benzene is 2.419
We need to find the speed of light in benzene. The ratio of speed of light in vacuum to the speed of light in the medium equals the refractive index. So,

So, the speed of light in bezene is
.
Answer:
don't know
Explanation:
don't know cause i don't read physic
Answer:

Explanation:
The volumetric expansion of the liquid is given by

where
is the coefficient of volume expansion
is the initial volume
is the change in temperature
For the liquid in this problem,

So we can solve the equation to find
:

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Answer:
displacement
Explanation:
Hookes Law describes the elastic properties of materials only in the range in which the force and displacement are proportional (displacement = change in length).