6 posts • Page 1 of 1
Can someone clarify what Professor Lavelle was talking about in lecture about the wavelength and frequency relationships. For example, why is it when the frequency doubles, the wavelength halves? I'm still a little confused on this concept.
The equation is c=hv (speed=wavelength x frequency). Since c (speed) is a constant if wavelength decreased, frequency would have to increase in order for the constant c to remain the same (3.00 x 10^8). Essentially, the wavelength and frequency have to equal the constant c when they're multiplied together, so their relationship works like that in order for the constant of speed to remain at it's value. Hope that makes sense!
What Dr. Lavelle was drawing attention to was the relationship in which wavelength and frequency are inversely proportional to one another. This is why when one is equal to 2 the other is equal to 1/2. You can think of it as v=1/lamda (sorry I don't have the symbol) or frequency=1/wavelength.
When wavelength gets bigger, the frequency decreases. If you look at the equation v=f(lambda) and we know that there is constant speed(at least in the same medium) then we know that if one increases, the other has to decrease. Therefore, it is an indirect relationship.
Who is online
Users browsing this forum: No registered users and 3 guests