Assertion: More energy is released in fusion than fission.
Reason: More number of nucleons take part in fission.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Asserion: γ-radiation emission occurs after decay.
Reason: Energy levels occurs in nucleus.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
A proton travels few distance in an electric field, then it enters a crossed magnetic field of 1 T and radius 0.2 m, find the velocity of proton
0.2 × 108 m s-1
0.2 × 107 m s-1
0.2 × 106 m s-1
2 × 107 m s-1
For a nuclear reactor to run in critical condition the reproduction factor k should be
= 1
> 1
< 1
>>> 1
S32 absorbs energy and decays into which element after two -emissions?
Carbon
Aluminium
Oxygen
magnesium
D.
magnesium
The -emission of S32 is as follows:
16S32 → 14Si28 + 2He4
14Si28 → 12Mg24 + 2He4
So after the emission of two -particle 12Mg24 is formed.
Among the following which is used to control the rate of reaction of nuclear fissions reactions?
Water
Heavy water
Cadmium
Graphite
Assertion: For nuclear reactor, it is desirable to have k = 1.
Reason: Sustained chain reaction occur at this critical condition.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: Mass defect in nuclear reactions is less than 1%.
Reason: In nuclear reaction change in BE/N is generally less than 1%.
If both assertion and reason are true and reason is correct explanation of asertion.
If both assertion and reason are true and reason is not correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.