In a fission process, maximum percentage of energy is released as

In nuclear fission each neutron that causes fission releases

A

No new neutron

B

At least one new neutron

C

One new neutron

D

More than one new neutron

The total energy released in fission of U is

A

5 MeV

B

10 MeV

C

199 MeV

D

168 MeV

Which of the following accounts for the maximum energy release in the nuclear fission process?

A

Kinetic energy of fission products

B

Radioactive decay of fission products

C

Instantaneous release of γ-rays

D

Kinetic energy of neutrons

Critical energy should be __________ the neutron binding energy of the atom in order to initiate a nuclear fission.

A

less than

B

equal to

C

either more or less

D

more than

Energy produced in the nuclear fission is of the order of __________ MeV.

A

20

B

200

C

1000

D

2000

In a watch, the spring is used to store strain energy. This energy is released

A

To stop the watch

B

To run the watch

C

To change the time

D

All of these

In a nuclear explosion, the energy is released primarily in the form of __________ energy.

A

Potential

B

Thermal

C

Kinetic

D

Electrical

CH3CH2OH যৌগটির মধ্যে যে বন্ধনটিতে বিষম বিভাজন (heterogeneity fission ) ঘটে, সেটি হলো -

A

C-C

B

C- O

C

C -H

D

O-H

A fission chain reaction in uranium can be developed

A

By increasing the contents of U₂₃₅

B

By slowing down fast neutrons so that U₂₃₅ fission continues by slow neutron

C

Both (A) and (B)

D

None of these

In triggering fission, which types of neutrons are more effective?

A

Fast

B

Slow

C

In bulk

D

Static

In a fission process, maximum percentage of energy is released as

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