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?

Frequency = No change

Wavelength = Decrease

Explanation:

As we know that frequency of light depends on the source only and it will not change due to any change in the medium.

So here we can say that frequency is independent of the medium and it will remain same while light travels from one medium to other medium.

Now we also know the relation between frequency, wavelength and speed which is given as

now we know that frequency is constant so ratio of speed and wavelength must be same.

Since we know that speed is decreased as the light move from air to glass so here the wavelength must be decreased.

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

resonant frequency