Answer:
Explanation:
Given that,
The speed of an electromagnetic wave traveling in a transparent nonmagnetic substance is given by :
Where
k is the dielectric constant of the substance.
v is the speed of light in water
So, the speed of light in water is
Answer:
X: Always attractive
Y: Infinite range
Z: Attractive or repulsive
ANSWER IS C
It is the subtance betwen the person or the object
Answer:
light doesn't need a medium through which to travel because the speed of light is experimentally constant