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lilavasa [31]
3 years ago
7

When light is either reflected or refracted, the quantity that does not change in either process is its

Physics
1 answer:
Brrunno [24]3 years ago
6 0

Answer:

Frequency

Explanation:

When waves travel from one medium to another, it is only the frequency of the wave that remains constant . when a wave is refracted at the boundary between two media, the wave will slow down and its wavelength decreases. The wave usually bends at the interface between the two media. The wavelength and speed of a wave may change at the boundary between two media but its frequency remains the same.

Hence the frequency of light is its only property that remains constant.

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2 years ago
Charge is distributed uniformly throughout the volume of an infinitely long solid Cylinder of radius R what is the electric fiel
Arada [10]

Solution :

Let us consider the Gaussian surface that is in the form of a cylinder having a radius of r and a length of A which is $\text{coaxial with the charged cylinder}$.

The charged enclosed by the cylinder is given by,

$q=\rho V$       (here, V = $\pi r^2l$  is the volume of the cylinder)

  $=\pi r^2lp$    

If $\rho$ is positive, then the electric field lines moves in the radial outward direction and is normal to Gaussian surface which is distributed uniformly.

Therefore, total flux through Gaussian cylinder is :

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Now using Gauss' law, we get

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or $E=\frac{\rho r}{2 \epsilon_0}$

Therefore, the electric field is $E=\frac{\rho r}{2 \epsilon_0}$

Hence, option (d) is correct.

8 0
3 years ago
Help me pleas.pleas help me<br> Science
Alexus [3.1K]

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6 0
3 years ago
What statement is true about a spring?
Citrus2011 [14]
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5 0
4 years ago
Read 2 more answers
What color does a red and blue jacket look through a green filter​ put over a red filter
pickupchik [31]

Answer: black

Explanation:

A colour filter is a filter that lets only one colour pass through it. For example, a red filter lets only red colour pass through it, while a green filter lets only green light pass through it.

In this example, we have a red and blue jacket. At first, we put a red filter: this filter lets pass throuhg only the red light. Then, we put a green filter: this filter lets pass only green light through it. However, there is no green light coming from the previous filter (since only red light passes through it), so the jacket appears black (no colours).

8 0
4 years ago
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