Waves and Thermodynamics

If two waves have the same frecuency

• They have the same amplitude

• They have the same wavelenght

• They have the same period

• They are sisters

If I measure the intensity, I1, at a distance d1 = 2 from the surface, and then I2 at a distance d2 = 4

• I1 = 2 I2

• I1 = 0.5 I2

• I1 = 4 I2

• I2 = I1

Energy is directly proportional to amplitude

Is this wave longitudinal or transversal?

• Longitudinal

• Transversal

Someone wants to sell you some polarized sunglasses, and they are incredibly expensive, do you have a way to check if they are actually polarized?

• I need at least two pair of sunglasses to check.

• Yes I can tell by looking at the intensity of the glasses.

• No, there is no way I can tell.

• I just happen to like to look at the sun directly.

What is the phase difference between this two waves?

• pi

• 2 pi

• 0.5 pi

• 0.25 pi

What do they have in common?

• Amplitude

• Phase

• Frecuency

• Frecuency and phase

What is the wavelength's value?

• 12

• I can't tell

• 6

• pi

In this class the temperature is at equilibrium

• True

• False

If I increase the temperature of a gas while the volume is constant

• The pressure increase

• The pressure decrease