Question 1

Barium-137 emits a gamma ray from an excited state (137Ba* ).What is the resulting daughter nuclide?

Accepted Answer

A)  137Cs 
B)  137Ba 
C)  137La 
D)  136Ba 
E)  136Cs 
A)  137Cs 
B)  137Ba 
C)  137La 
D)  136Ba 
E)  136Cs

Question 2

What is the mass of 25.0 mCi of 99Tcm which has a half-life of 6.00 h?

Accepted Answer

A)  4.74 ng 
B)  50.7 pg 
C)  1.05 ng 
D)  3.29 ng 
E)  25.0 mg 
A)  4.74 ng 
B)  50.7 pg 
C)  1.05 ng 
D)  3.29 ng 
E)  25.0 mg

Question 3

Of the following conservation laws,which (if any) is not obeyed in radioactive decay?

Accepted Answer

A)  energy 
B)  momentum 
C)  charge 
D)  angular momentum 
E)  All of these conservation laws are obeyed. 
A)  energy 
B)  momentum 
C)  charge 
D)  angular momentum 
E)  All of these conservation laws are obeyed.

Question 4

What is the binding energy of 12C? The mass of an atom of 12C is 12 u (exactly),of an atom of 1H is 1.007825 u,and of a neutron is 1.0086649 u.

Accepted Answer

A)  137 MeV 
B)  104 MeV 
C)  92.2 MeV 
D)  46.1 MeV 
E)  7.68 MeV 
A)  137 MeV 
B)  104 MeV 
C)  92.2 MeV 
D)  46.1 MeV 
E)  7.68 MeV

Question 5

In the nucleus,the maximum number of neutrons in a neutron energy level is (are)______ and the maximum number of protons in a proton energy level is (are)______.

Accepted Answer

A)  1,1 
B)  1,2 
C)  2,1 
D)  2,2 
E)  2,8 
A)  1,1 
B)  1,2 
C)  2,1 
D)  2,2 
E)  2,8

Question 6

For a selected atom in a sample of a radioactively decaying isotope,the probability that it will decay during a time interval of a specified length is

Accepted Answer

A)  dependent on how long ago t = 0 was set. 
B)  independent of when the time interval starts relative to the current time. 
C)  dependent upon how old the atom is. 
D)  fundamentally unpredictable. 
A)  dependent on how long ago t = 0 was set. 
B)  independent of when the time interval starts relative to the current time. 
C)  dependent upon how old the atom is. 
D)  fundamentally unpredictable.

Question 7

How many atoms are in one gram of 2713Al?

Accepted Answer

A)  1.63 $\times$ 1025 
B)  6.02 $\times$ 1022 
C)  1.51 $\times$ 1023 
D)  2.23 $\times$ 1025 
E)  2.23 $\times$ 1022 
A)  1.63 $\times$ 1025 
B)  6.02 $\times$ 1022 
C)  1.51 $\times$ 1023 
D)  2.23 $\times$ 1025 
E)  2.23 $\times$ 1022

Question 8

The binding energy per nucleon is about ______ MeV around A = 60 and about ______ MeV around A = 240.

Accepted Answer

A)  9.4 , 7.0 
B)  7.6 , 8.7 
C)  7.0 , 9.4 
D)  7.0 , 8.0 
E)  8.7 , 7.6 
A)  9.4 , 7.0 
B)  7.6 , 8.7 
C)  7.0 , 9.4 
D)  7.0 , 8.0 
E)  8.7 , 7.6

Question 9

One pg (picogram) of 40K has how many nuclei?

Accepted Answer

A)  6.0 $\times$ 1017 
B)  6.0 $\times$ 1011 
C)  1.5 $\times$ 1022 
D)  3.0 $\times$ 1011 
E)  1.5 $\times$ 1010 
A)  6.0 $\times$ 1017 
B)  6.0 $\times$ 1011 
C)  1.5 $\times$ 1022 
D)  3.0 $\times$ 1011 
E)  1.5 $\times$ 1010

Question 10

How many neutrons are produced in the induced fission reaction 10n + 23592Uà 8838Sr + 13654Xe + neutrons?

Accepted Answer

A)  2 
B)  0 
C)  1 
D)  3 
A)  2 
B)  0 
C)  1 
D)  3

Question 11

If a nucleus has excited states above the ground state at 300 keV, 200 keV, and 80 keV, what gamma rays (in keV) may be expected from a collection of these excited nuclei? Choose the most complete set.

Accepted Answer

A)  300,200,80 
B)  300,200,120,80 
C)  100,120,80 
D)  300,120,200,80,180 
E)  300,220,200,120,100,80 
A)  300,200,80 
B)  300,200,120,80 
C)  100,120,80 
D)  300,120,200,80,180 
E)  300,220,200,120,100,80

Question 12

What is the symbol for the nuclide with 38 protons and 50 neutrons?

Accepted Answer

A)  5038Sr 
B)  3850Sn 
C)  8838Sr 
D)  8850Sn 
A)  5038Sr 
B)  3850Sn 
C)  8838Sr 
D)  8850Sn

Question 13

What nuclide has 14 protons and 16 neutrons?

Accepted Answer

A)  16S 
B)  14O 
C)  30Si 
D)  30S 
A)  16S 
B)  14O 
C)  30Si 
D)  30S

Question 14

One mole of 2713Al has a mass of _______ g.

Accepted Answer

A)  13 
B)  27 
C)  14 
D)  20 
E)  40 
A)  13 
B)  27 
C)  14 
D)  20 
E)  40

Question 15

If a 60 kg person absorbed a dose of 1.7 rem of radiation with a quality factor of 1.1,what was the total energy absorbed in joules?

Accepted Answer

A)  1.7 
B)  1.5 
C)  0.93 
D)  0.015 
E)  0.26 
A)  1.7 
B)  1.5 
C)  0.93 
D)  0.015 
E)  0.26

Question 16

If a nuclide has a half-life of 100 s,what is the corresponding mean lifetime?

Accepted Answer

A)  100 s 
B)  144 s 
C)  69 s 
D)  50 s 
E)  75 s 
A)  100 s 
B)  144 s 
C)  69 s 
D)  50 s 
E)  75 s

Question 17

Which of the following nuclear reactions is forbidden?

Accepted Answer

A)  73Li + 32He --> 11p + 2 42He 
B)  42He + 31H --> 73Li 
C)  73Li + 11H --> 2 42He 
D)  10n + 23592U --> 13250Sn + 10142Mo + 310n 
A)  73Li + 32He --> 11p + 2 42He 
B)  42He + 31H --> 73Li 
C)  73Li + 11H --> 2 42He 
D)  10n + 23592U --> 13250Sn + 10142Mo + 310n

Question 18

In the reaction n + 12C $\rarr$ $\alpha$+ ? ,what is the product nucleus?

Accepted Answer

A)  13C 
B)  9C 
C)  10B 
D)  9B 
E)  9Be 
A)  13C 
B)  9C 
C)  10B 
D)  9B 
E)  9Be

Question 19

The gravitational force,the electromagnetic force,and the strong nuclear force are ______ range,_______ range,and _______ range,respectively.

Accepted Answer

A)  short,long,long 
B)  short,short,long 
C)  short,short,short 
D)  long,short,short 
E)  long,long,short 
A)  short,long,long 
B)  short,short,long 
C)  short,short,short 
D)  long,short,short 
E)  long,long,short

Question 20

A neutron star has approximately the density of nuclear material.If a neutron star is the mass of the sun,1.99 $\times$ 1030 kg,what would be its radius? You may wish to use the relationship r = (1.2 fm)A1/3 together with the mass of a proton,1.67 $\times$ 10-27 kg,to estimate.

Accepted Answer

A)  12 km 
B)  19 km 
C)  13 km 
D)  9.8 km 
A)  12 km 
B)  19 km 
C)  13 km 
D)  9.8 km

Exam 29: Nuclear Physics

Barium-137 emits a gamma ray from an excited state (137Ba* ).What is the resulting daughter nuclide?

What is the mass of 25.0 mCi of 99Tcm which has a half-life of 6.00 h?

Of the following conservation laws,which (if any) is not obeyed in radioactive decay?

What is the binding energy of 12C? The mass of an atom of 12C is 12 u (exactly),of an atom of 1H is 1.007825 u,and of a neutron is 1.0086649 u.

In the nucleus,the maximum number of neutrons in a neutron energy level is (are)______ and the maximum number of protons in a proton energy level is (are)______.

For a selected atom in a sample of a radioactively decaying isotope,the probability that it will decay during a time interval of a specified length is

How many atoms are in one gram of 2713Al?

The binding energy per nucleon is about ______ MeV around A = 60 and about ______ MeV around A = 240.

One pg (picogram) of 40K has how many nuclei?

How many neutrons are produced in the induced fission reaction 10n + 23592Uà 8838Sr + 13654Xe + neutrons?

If a nucleus has excited states above the ground state at 300 keV, 200 keV, and 80 keV, what gamma rays (in keV) may be expected from a collection of these excited nuclei? Choose the most complete set.

What is the symbol for the nuclide with 38 protons and 50 neutrons?

What nuclide has 14 protons and 16 neutrons?

One mole of 2713Al has a mass of _______ g.

If a 60 kg person absorbed a dose of 1.7 rem of radiation with a quality factor of 1.1,what was the total energy absorbed in joules?

If a nuclide has a half-life of 100 s,what is the corresponding mean lifetime?

Which of the following nuclear reactions is forbidden?

In the reaction n + 12C →\rarr→ α\alphaα + ? ,what is the product nucleus?

The gravitational force,the electromagnetic force,and the strong nuclear force are ______ range,_______ range,and _______ range,respectively.

A neutron star has approximately the density of nuclear material.If a neutron star is the mass of the sun,1.99 ×\times× 1030 kg,what would be its radius? You may wish to use the relationship r = (1.2 fm)A1/3 together with the mass of a proton,1.67 ×\times× 10-27 kg,to estimate.

Introduction

Force

Acceleration and Newtons Second Law of Motion

Motion With Constant Acceleration

Circular Motion

Conservation of Energy

Linear Momentum

Torque and Angular Momentum

Fluids

Elasticity and Oscillations

Waves

Sound

Temperature and the Ideal Gas

Heat

Thermodynamics

Electric Forces and Fields

Electric Potential

Electric Current and Circuits

Magnetic Forces and Fields

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Reflection and Refraction of Light

Optical Instruments

Interference and Diffraction

Relativity

Early Quantum Physics and the Photon

Quantum Physics

Particle Physics

Filters

Barium-137 emits a gamma ray from an excited state (¹³⁷Ba^* ).What is the resulting daughter nuclide?

What is the mass of 25.0 mCi of ⁹⁹Tc^m which has a half-life of 6.00 h?

What is the binding energy of ¹²C? The mass of an atom of ¹²C is 12 u (exactly),of an atom of ¹H is 1.007825 u,and of a neutron is 1.0086649 u.

In the nucleus,the maximum number of neutrons in a neutron energy level is (are) and the maximum number of protons in a proton energy level is (are).

How many atoms are in one gram of ²⁷₁₃Al?

The binding energy per nucleon is about MeV around A = 60 and about MeV around A = 240.

One pg (picogram) of ⁴⁰K has how many nuclei?

How many neutrons are produced in the induced fission reaction ¹₀n + ²³⁵₉₂Uà ⁸⁸₃₈Sr + ¹³⁶₅₄Xe + neutrons?

One mole of ²⁷₁₃Al has a mass of _______ g.

In the reaction n + ¹²C $\rarr$ $\alpha$ + ? ,what is the product nucleus?

The gravitational force,the electromagnetic force,and the strong nuclear force are __ range,_ range,and _____ range,respectively.

A neutron star has approximately the density of nuclear material.If a neutron star is the mass of the sun,1.99 $\times$ 10³⁰ kg,what would be its radius? You may wish to use the relationship r = (1.2 fm)A^1/3 together with the mass of a proton,1.67 $\times$ 10^-27 kg,to estimate.