Answer:
Viscosity is a measure of how much a liquid resists flowing freely.
Conductive maybe? I forgot but I’m pretty sure it’s conducive
According to law of reflection, the barber should place one mirror in front of the chair and two mirrors on the left and right sides of the chair perpendicular to the front mirror. According to law of shadows, the bulb should be placed above the chair.
What is the law of refraction?
The angle of incidence is equal to the angle of reflection.
- According to the law of reflection, when two mirrors are placed parallel to each other, then infinite images are formed. So if the bulb is placed between two parallel mirrors, then there will be more light.
- By using the front mirror and the side mirrors, the person can see his hair from all sides.
What is the law of shadow?
The length of the shadow of an opaque substance on the surface decreases as the angle between the blocked light ray and the surface plane increases.
- According to the law of shadows, when the light falls on an opaque substance perpendicularly, then no shadows are formed. So hairs will be easily visible to the barber.
- So the light should be placed above the chair.
Learn more about law of reflection.
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Answer:
option :d.
both north and south of equator
Here we can use coulomb's law to find the force between two charges
As per coulombs law
]tex]F = \frac{kq_1q_2}{r^2}[/tex]
here we have
now by using the above equation we have
so here the force between two charges is of above magnitude and this will be repulsive force between them as both charges are of same sign.
