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Question 1: The de Broglie wavelength of an electron of mass m that is moving with the speed v, v << c, is:

Question 2:



Two moles of an ideal gas is initially at pressure p, volume V₁
and temperature T₁. If V₁ = 3V₂, what is the temperature T₂ at point B if
process AB is isobaric?

Question 3: A beam of particles of charge q = 5·10^-20C and mass m = 2·10^-25 kg enters an area with a magnetic field of magnitude B = .2T with a speed of 10³ m/s. The path of the particles is a circular arc of radius R. The gravitational force is negligible. What is the radius R?

Question 4:



Four point charges are placed in the corners of a square, as shown in the figure above. Charges q_b = 10^-9C, q_c = -10^-9C and q_d = 10^-9C. What is the magnitude of charge q_a if the magnitude of the electric force on q_c is 0 Newtons?

Question 5:



In the figure above, θ_a is the angle of incidence in the air and θ_i is the angle of refraction of a block of ice. What is the index of refraction of the block of ice?