Answer:
6 V
Explanation:
In a circuit, the relationship between voltage, current and resistance is given by Ohm's law:

where
V is the voltage
R is the resistance
I is the current
In this circuit, we have
is the resistance
I = 0.500 A
so we can find the voltage of the battery by using Ohm's law:

Answer:
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Answer:
light is an example of a wave that is not mechanical .
it is different as it does not need material medium for its propagation
The optical fibers are thin, thus, the light entering from one side of the wire surface has more chances to reflect back from the inside surface due to the larger angle of incidence.
The angle of the strike is large due to the small size of the wire and this angle is greater than the critical angle.
As the angle of the incident light on the inside surface is greater than the critical angle, thus, the total internal reflection of the takes place.
Hence, there are more chances of total internal reflection of light inside the optical fiber wire than the emergence of light through the wire.