An angle of refraction is the angle between the refracted ray and the
2 answers:
Answer: The correct answer is the Normal.
Explanation:
When the incident ray enters the refracting surface, the ray bends from its original path because of the refractive index of the surface.
The angle of refraction is the angle which is made by the refracted ray and the perpendicular on the surface.
The perpendicular on the surface is known as Normal.
Hence, the angle of refraction is the angle between the refracted ray and the Normal.
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Answer:
F = 3750 N
Explanation:
Given that,
Pressure, P = 150 Pa
Area, a = 25m²
We need to find the force applied. We know that, pressure is equal to the force acting per unit area. It can be given by :
So, the required force is 3750 N.
I guess the problem is asking for the induced emf in the coil.
Faraday-Neumann-Lenz states that the induced emf in a coil is given by:
where
N is the number of turns in the coil
is the variation of magnetic flux through the coil
is the time interval
The coil is initially perpendicular to the Earth's magnetic field, so the initial flux through it is given by the product between the magnetic field strength and the area of the coil:
At the end of the time interval, the coil is parallel to the field, so the final flux is zero:
Therefore, we can calculate now the induced emf by using the first formula:
Faraday-Neumann-Lenz states that the induced emf in a coil is given by:
where
N is the number of turns in the coil
The coil is initially perpendicular to the Earth's magnetic field, so the initial flux through it is given by the product between the magnetic field strength and the area of the coil:
At the end of the time interval, the coil is parallel to the field, so the final flux is zero:
Therefore, we can calculate now the induced emf by using the first formula: