Author Question: A charge q = 3 10-6 C of mass m = 2 10-6 kg, and speed v = 5 106 m/s enters a uniform magnetic ... (Read 78 times)

amal · **on:** Jul 27, 2018

A charge q = 3 10-6 C of mass m = 2 10-6 kg, and speed v = 5 106 m/s enters a uniform magnetic field. The mass experiences an acceleration a = 3 104 m/s2. What is the minimum magnetic field that would produce such an acceleration?

A) 0.1 T
B) 0.004 T
C) 0.001 T
D) 0.01 T
E) 0.04 T

Question 2

Consider two diffraction gratings; one has 4000 lines per cm and the other one has 6000 lines per cm.

A) The 4000-line grating produces the greater dispersion.
B) Both gratings produce the same dispersion, but the orders are sharper for the 4000-line grating.
C) Both gratings produce the same dispersion, but the orders are sharper for the 6000-line grating.
D) The 6000-line grating produces the greater dispersion.