Which of the following is not the usual outcome of nuclear fission?
a. The binding energy per nucleon of the fission fragments is smaller than that of the original nucleus.
b. Energy is released.
c. Neutrons are released.
d. The fission fragments are radioactive.
a
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Double-Slit Interference: At most, how many bright fringes can be formed on one side of the central bright fringe (not counting the central bright fringe) when light of 625 nm falls on a pair of slits that are 6.77 × 10-6 m apart?
A. 10 B. 9 C. 8 D. 11 E. 12
Cathode rays are now known to be
A) electrons. B) visible light rays. C) protons. D) x-rays. E) short wavelength light rays.
Does the Moon orbit the Sun?
A. Yes. It goes in a circle about the Sun. B. No. It orbits Earth. C. Yes, but it also orbits Earth. D. No, but it would if Earth were not present.
The radioactive nuclei 60Co is widely used in medical applications. It undergoes beta decay, and the total energy of the decay process is 2.82 MeV per decay event
The half-life of this nucleus is 272 days. Suppose that a patient is given a dose of 6.9 µCi of 60Co. If all of this material decayed while in the patient's body, what would be the total energy deposited there? (1 Ci = 3.70 × 1010 decays/s) A) 11 J B) 8.6 GJ C) 3.9 J D) 24 J E) 4.15 MJ