Can light be reflected and refracted at the same time?

1 answer:

6 0

Yes, think of a window for example. When you look out of it, you can see whatever is beyond the window. Sometimes, you might even see your own reflection in the window, if the light rays hit the glass and reflect your image in the right direction. This is often debated in quantum mechanics because of the outcome of an interaction between two particles. Another example would be water in a lake or perhaps your pool. You can see into the water, but sometimes, at your own reflection as well.

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Enumerate the viscosity of magma in different conditions.

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Answer:

The nature of volcanic eruptions is highly dependent on magma viscosity and also on dissolved gas content. ... long it takes the treacle to flow from one end of a boiling tube to the other.

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Where was the novel from the word quark was taken

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A sound system is designed to produce a 1.0W/m2 sound intensity over the surface of a hemisphere 20 m in radius. What acoustic p

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Answer:

2513.6 W

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Acoustic power = sound intensity × area of hemisphere

Sound intensity = 1 W/m^2

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3 years ago

Label these as balanced or unbalanced:

kvasek [131]

Answer:

A book lying on a table - Balanced force
An airplane cruising in level flight - Balanced
A rock falling from a cliff - Unbalanced force
A bridge collapsing in an earthquake - Unbalanced force
A man sitting on a park bench - Balanced force
A space shuttle taking off - Unbalanced force
A car maintaining a constant speed on a straight road - Balanced force
An airplane landing - Unbalanced force

Explanation:

Usually, one or more forces act on a body at an instant of time. When these forces acting on a body and bring the body in the equilibrium position, the force is said to be balanced. The unbalanced force changes the equilibrium state of the body.

As in the case of an airplane cruising in a level flight, the weight of the plane will be equal to the lift force and the thrust is equal to the drag. So the plane is experiencing a balanced force.

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We can feel it as heat, using the nerve endings in our skins.

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