At the first minimum in the diffraction pattern, what is the path length difference between the ray from the top of the slit and the ray from the bottom of the slit? a. 0.25 wavelength
b. 0.50 wavelength
c. 0.75 wavelength
d. 1.00 wavelength
e. 1.50 wavelengths
f. 2.00 wavelengths

The differences between  a compression wave and a transverse wave?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing