How does the wavelength of a light wave change if the frequency is increased by a factor of 3? Assume the speed of the wave remains unchanged.
A. The wavelength increases by a factor of 3.
B. The wavelength does not change.
C. The wavelength increases by a factor of 9.
D. The wavelength decreases by a factor of 3.

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.