Reference no: EM132599359

1. A pulsed laser emits light in a series of short pulses, each having an energy, E, of 1.25×10-4 J. There are 4.00×1014 photons in each pulse. The wavelength of the light is:

Select one:

a. 610 nm
b. 636 nm
c. 575 nm

2. A typical band gap for a semiconductor is

Select one:

a. 1.25 J
b. 1.25 eV
c. 1.25 keV
d. 1.25 V

3. Rather than having a maximum at about A ~ 60, suppose the average binding energy per nucleon continually increased with increasing mass number. Then,

Select one:

a. fusion would be possible, but not fission.
b. both fission and fusion would still be possible.
c. neither fission nor fusion would be possible.
d. fission would still be possible, but not fusion.

4. Which radiation induces the most biological damage for a given amount of energy deposited in tissue?

Select one:

a. Alpha particles.
b. Gamma radiation.
c. Beta radiation.
d. All do the same damage for the same deposited energy.

5. When a nucleus with atomic number Z and mass number A undergoes alpha decay, the daughter has the following atomic and mass numbers:

Select one:

a. Z-2, A-2
b. Z, A-4
c. Z, A
d. Z-2, A-4
e. Z-4, A-4