EASY

Earn 100

If the binding energy per nucleon in ${}_{3}^{7}{L i a n d {}_{2}^{4}{H e}}$ nuclei are 5.60 MeV and 7.06 MeV respectively, then in the reaction

$p + {}_{3}^{7}{L i \to 2 {}_{2}^{4}{H e}}$

energy of proton must be

50% studentsanswered this correctly

Important Questions on Atomic Nucleus

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The energy required to break one bond in DNA is

10^{- 20} J

. This value in

eV

is nearly

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

Find the Binding energy per nucleon for

{}_{50}^{120}{Sn}

. Mass of proton

m_{p} = 1.00783 u

, mass of neutron

m_{n} = 1.00867 u

and mass of tin nucleus

m_{Sn} = 119.902199 u

. (take

1 u = 931 MeV

)

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The energy equivalent of

0.5 g

of a substance is:

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

If the binding energy of

N^{14}

7.5 MeV

per nucleon and that of

N^{15}

7.7 MeV

per nucleon, then the energy required to remove a neutron from

N^{15}

HARD

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

Consider the nuclear fission,

{Ne}^{20} \to 2 {He}^{4} + C^{12}

. Given that the binding energy/nucleon of

{Ne}^{20}, {He}^{4}

and

C^{12}

are

8.03 MeV, 7.86 MeV

, respectively. Identify the correct statement:

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

In a process, certain amount of mass gets converted into energy. Let all the energy so converted be in the form of photons. If

700 \times 10^{12} Hz

is the mean frequency of the photons and if there are approximately

10^{30}

photons, what is the approximate mass that is converted into photons? (Assume

h = 6.6 \times 10^{- 34} J s, c = 3 \times 10^{8} m s^{- 1}

)

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

You are given that Mass of

{}_{3}^{7}{Li} = 7.0160 u,

Mass of

{}_{2}^{4}{He} = 4.0026 u

and Mass of

{}_{1}^{1}{He} = 1.0079 u

. When

20 g

{}_{3}^{7}{Li}

is converted into

_{2}^{4} He

by proton capture, the energy liberated, (in

kWh

), is: [Mass of nucleon

= 1 GeV / c^{2}

]

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The energy equivalent to a substance of mass $1 g$ is

HARD

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The electrostatic energy of

Z

protons uniformly distributed throughout a spherical nucleus of radius

R

is given by,

E = \frac{3}{5} \frac{Z (Z - 1) e^{2}}{4 π ε_{0} R}

. The measured masses of the neutron,

{}_{1}^{1}H, {}_{7}^{15}N and {}_{8}^{15}O

are

1.008665 u

1.007825 u, 15.000109 u and 15.003065 u

respectively. Given that the radii of both the

{}_{7}^{15}N and {}_{8}^{15}O

nuclei are same,

1 u = 931.5 MeV c^{- 2}

(

c

is the speed of light) and

\frac{e^{2}}{(4 π ϵ_{0})} = 1.44 MeV fm

. Assuming that the difference between the binding energies of

{}_{7}^{15}N a n d {}_{8}^{15}O

is purely due to the electrostatic energy, the radius of either of the nuclei is

(1 fm = 10^{- 15} m)

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The binding energy per nucleon of

{}_{5} B^{10}

8.0 MeV

and that of

{}_{5} B^{11}

7.5 MeV .

The Energy required to remove a neutron from

{}_{5} B^{11}

is (mass of electron and proton are

9.11 \times 10^{- 31} kg

and

1.67 \times 10^{- 27} kg

)

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

A nucleus

X

emits a

β

-particle to produce a nucleus

Y

. If their atomic masses are

M_{x}

and

M_{y}

respectively, then the maximum energy of the

β

-particle emitted is (where,

m_{e}

is the mass of an electron and

c

is the velocity of light)

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

Two deuterons undergo nuclear fusion to form a Helium nucleus. The energy released in this process is (given binding energy per nucleon for deuteron

= 1.1 MeV

and for helium

= 7.0 MeV

)

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The mass-defect in a nuclear fusion reaction is

0.3

per cent. The amount of energy released in one

kg

of fusion reaction is

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

What is the binding energy of ${}_{14}^{29}S i$ whose atomic mass is $28.976495 u$

Mass of proton $= 1.007276 u$

Mass of neutron $= 1.008664 u$

(Neglect the electron mass) (Assume $1 u = 931.5 MeV$ )

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

In a certain mass spectrometer, an ion beam passes through a velocity filter consisting of mutually perpendicular fields E and B. The beam then enters a region of another magnetic field

B^{'}

, perpendicular to the beam. The radius of curvature of the resulting ion beam is proportional to

MEDIUM

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

Find the energy equivalent of one atomic mass unit in Joules and in

MeV .

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

The binding energy of a nucleus is equivalent to

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

If the binding energy of the electron in a hydrogen atom is

13.6 eV

, the energy required to remove the electron from the first excited state of

{Li}^{+ +}

is :

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

Imagine that a reactor converts all the given mass into energy and that it operates at a power level of

10^{9} Watt

. The mass of the fuel consumed

per hour

, in the reactor, will be:
(velocity of light,

c

3 \times 10^{8} m s^{- 1}

)

EASY

General Science>Physics>Atomic Nucleus>Mass-energy and Nuclear Binding Energy

A particle of rest mass

m_{0}

is travelling, so that its total energy is twice its rest mass energy. It collides with another stationary particle of rest mass

m_{0}

to form a new particle. What is the rest mass of the new particle?

If the binding energy per nucleon in Li and He2437 nuclei are 5.60 MeV and 7.06 MeV respectively, then in the reaction p +Li →2 He2437 energy of proton must be

Important Questions on Atomic Nucleus

Learn and Prepare for any exam you want !

If the binding energy per nucleon in ${}_{3}^{7}{L i a n d {}_{2}^{4}{H e}}$ nuclei are 5.60 MeV and 7.06 MeV respectively, then in the reaction

$p + {}_{3}^{7}{L i \to 2 {}_{2}^{4}{H e}}$

energy of proton must be