A glass plate 3.45 mm thick, with an index of refraction of 1.60, is placed between a point source of light with wavelength 500 nm (in vacuum) and a screen. The distance from source to screen is 2.05 cm. How many wavelengths are there between the source and the screen?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

What are similarities and differences of reflection, refraction, diffraction and absorption?

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?