Atoms and Nuclei Test

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Atoms and Nuclei Test - 28

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Weekly Quiz Competition

Question 1
4 / -1

Assume the graph of specific binding energy versus mass number- is as shown in the figure. Using this graph, select the correct choice from the following.

A
Fusion of two nuclei of mass number lying in the range of 100 < .4 < 200 will release energy

B
Fusion of two nuclei of mass number lying in the range of 51 < A < 100 will release energy

C
Fusion of two nuclei of mass number lying in the range of 1 < A < 50 will release energy

D
Fission of the nucleus of mass number lying in the rang of 100 < A < 200 will release energy when broken into two fragments
Question 2
4 / -1

Pick out the correct statement from the following.

A
Energy released per unit mass of the reactant is less in case of fusion reaction

B
Packing fraction may be positive or may he negative

C
Pu²³⁹ is not suitable for a fission reaction

D
For stable nucleus, the specific binding energy is low
Question 3
4 / -1

The energy released in the explosion of an atom bomb is mainly due to

A
nuclear fusion

B
nuclear fission

C
controlled nuclear chain reaction

D
None of the above
Question 4
4 / -1

A
Both A and R are correct and R is the explanation of A

B
Both A and R are correct and R is not a explanation of A

C
A is correct but R is incorrect

D
A is incorrect but R is correct
Question 5
4 / -1

The phenomena in which proton flips is

A
nuclear magnetic resonance

B
lasers

C
radioactivity

D
nuclear fusion
Question 6
4 / -1

F_Pe represents electrical force on proton due to electron and F_Pe on electron due to proton in a hydrogen atom. Similarly, F_Pe represents the gravitational force on proton due to electron and F_Pe the corresponding force on electron due to proton. Which of the following is not true?

A
F_Pe + F_Pe = 0

B
F'_Pe + F'_Pe = 0

C
F_Pe + F'_Pe + F_Pe +F'_Pe = 0

D
F_Pe + F'_Pe = 0
Question 7
4 / -1

Using the following data :
Mass of hydrogen atom = 1.00783 u
Mass of neutron = 1.00867 u
Mass of nitrogen atom(₇N¹⁴) = 14.00307 u
The calculated value of the binding energy of the nucleus of the nitrogen atom (₇N¹⁴) is close to

A
56 MeV

B
98 MeV

C
104 MeV

D
112 MeV

Solution
Question 8
4 / -1

This question contains Statement I and Statement II of the fbur choices given after the statements, choose the one of that best describes the two statements.
Statement I Energy is released when heavy nuclei undergo fission of light nuclei undergo fusion.
Statement II For heavy nuclei, binding energy per nucleon increases with increasing Z while for light nuclei it decreases with increasing Z.

A
If both Statement 1 and Statement II are incorrect and statement II is the correct explanation of the statement 1

B
If both Statement i and Statement II are correct but Statement 11 is not the correct explanation of statement I

C
If Statemetn I is correct, but the Statement II is false

D
If Statement I is incorrect, hut the Statement 11 is correct
Question 9
4 / -1

The nuclear fusion reaction is given
₁H² + ₁H² → ₀He³ + ₀n¹ + Q (energy).
If 2 mole of deuterium fused the total released energy is

A
2Q

B
4Q

C
Q × 6.02 × 10²³

D
Q × 2 × 6 × 10²³
Question 10
4 / -1

Which one of the following is correct about fission?

A
Approx 0.1% mass converts into energy

B
Most of energy of fission is in the form of heat

C
In a fission of U²³⁵, about 200 MeV energy is released

D
On an average, one neutron is released per fission of U²³⁵

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Atoms and Nuclei Test - 28

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Question 1

Fusion of two nuclei of mass number lying in the range of 100 < .4 < 200 will release energy

Fusion of two nuclei of mass number lying in the range of 51 < A < 100 will release energy

Fusion of two nuclei of mass number lying in the range of 1 < A < 50 will release energy

Fission of the nucleus of mass number lying in the rang of 100 < A < 200 will release energy when broken into two fragments

Question 2

Energy released per unit mass of the reactant is less in case of fusion reaction

Packing fraction may be positive or may he negative

Pu239 is not suitable for a fission reaction

For stable nucleus, the specific binding energy is low

Question 3

nuclear fusion

nuclear fission

controlled nuclear chain reaction

None of the above

Question 4

Both A and R are correct and R is the explanation of A

Both A and R are correct and R is not a explanation of A

A is correct but R is incorrect

A is incorrect but R is correct

Question 5

nuclear magnetic resonance

lasers

radioactivity

nuclear fusion

Question 6

FPe + FPe = 0

F'Pe + F'Pe = 0

FPe + F'Pe + FPe +F'Pe = 0

FPe + F'Pe = 0

Question 7

56 MeV

98 MeV

104 MeV

112 MeV

Solution

Question 8

If both Statement 1 and Statement II are incorrect and statement II is the correct explanation of the statement 1

If both Statement i and Statement II are correct but Statement 11 is not the correct explanation of statement I

If Statemetn I is correct, but the Statement II is false

If Statement I is incorrect, hut the Statement 11 is correct

Question 9

2Q

4Q

Q × 6.02 × 1023

Q × 2 × 6 × 1023

Question 10

Approx 0.1% mass converts into energy

Most of energy of fission is in the form of heat

In a fission of U235, about 200 MeV energy is released

On an average, one neutron is released per fission of U235

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Pu²³⁹ is not suitable for a fission reaction

F_Pe + F_Pe = 0

F'_Pe + F'_Pe = 0

F_Pe + F'_Pe + F_Pe +F'_Pe = 0

F_Pe + F'_Pe = 0

Q × 6.02 × 10²³

Q × 2 × 6 × 10²³

In a fission of U²³⁵, about 200 MeV energy is released

On an average, one neutron is released per fission of U²³⁵