Lightwaves travel from the air into a lens made of glass. their velocity decreases as they enter the glass. how does this affect the frequency and wavelength of the lightwaves

Step-by-step explanation:

Given : Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass.

To Find : How does this affect the frequency and wavelength of the lightwaves

Solution:

Change in velocity does not affect the frequency of light .

So, frequency will remain same

Wavelength is the "sacrificial quantity" that adjusts to adapt to change in speed.  

If it were frequency that changed, it would mean big problems for causality and conservation of energy.

Formula: c = v λ

Where c is the velocity

v = frequency

λ = wavelength

Thus the wavelength of light waves decrease as velocity decrease as they are directly proportional.

sorry not sure

step-by-step explanation:

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: