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marissa [1.9K]
3 years ago
9

What is units and dimensions? what are dimensions less quantities?​

Physics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

A dimension is a measure of a physical variable.

Unit is a way to assign a number or measurement to that dimension.

In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned, also known as a bare, pure, or scalar quantity or a quantity of dimension one, with a corresponding unit of measurement is the SI of the unit one, which is not explicity shown.

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Total internal reflection causes light to be completely reflected across the  boundary between the two media but not transmitted.

<h3>What is total internal reflection?</h3>

The term total internal reflection occurs when light is moving from a denser to a less dense medium such as from glass to air. This phenomenon occurs at the interface between the two media.

There are two conditions necessary for total internal reflection and they are;

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Total internal reflection causes light to be completely reflected across the  boundary between the two media but not transmitted.

Learn more about total internal reflection:brainly.com/question/13088998

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2 years ago
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8 0
1 year ago
What are the factors that affect the resistance of a wire?
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1) Length of the wire.

2) Thickness of the wire.

3) Temperature.

4) Type of metal.

Hope this helps!

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