मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

If the Nucleons of a Nucleus Are Separated from Each Other, the Total Mass is Increased. Where Does this Mass Come From? - Physics

Advertisements
Advertisements

प्रश्न

If the nucleons of a nucleus are separated from each other, the total mass is increased. Where does this mass come from?

टीपा लिहा
Advertisements

उत्तर

When the nucleons of a nucleus are separated, a certain amount of energy is to be given to the nucleus, which is known as the binding energy.
Binding energy = [(Number of nucleons)  `xx` (Mass of a nucleon) - (Mass of the nucleus)]

 When the nucleons of a nucleus are separated, the increase in the total mass comes from the binding energy, which is given to the nucleus to break-off its constituent nucleons as energy is related to mass by the relation given below.
E = Δmc2

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 24: The Nucleus - Short Answers [पृष्ठ ४४०]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
पाठ 24 The Nucleus
Short Answers | Q 7 | पृष्ठ ४४०

संबंधित प्रश्‍न

Derive an expression for the total energy of electron in ‘n' th Bohr orbit. Hence show that energy of the electron is inversely proportional to the square of principal quantum number. Also define binding energy.


Write symbolically the nuclear βdecay process of `""_6^11C` Is the decayed product X an isotope or isobar of (`""_6^11C`)? Given the mass values m (`""_6^11C`) = 11.011434 u and m (X) = 11.009305 u. Estimate the Q-value in this process.


Is the nucleus formed in the decay of the nucleus `""_11^22Na`, an isotope or isobar?


What is meant by the terms half-life of a radioactive substance and binding energy of a nucleus?


What is the significance of binding energy per nucleon of a nucleus of a radioactive element?


Is it easier to take out a nucleon (a) from carbon or from iron (b) from iron or from lead?


In which of the following decays the atomic number decreases?

(a) α-decay
(b) β+-decay
(c) β-decay
(d) γ-decay


Find the binding energy per nucleon of `""_79^197"Au"` if its atomic mass is 196.96 u.

(Use Mass of proton mp = 1.007276 u, Mass of `""_1^1"H"` atom = 1.007825 u, Mass of neutron mn = 1.008665 u, Mass of electron = 0.0005486 u ≈ 511 keV/c2,1 u = 931 MeV/c2.)


Mx and My denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay. The Q-value for a β decay is Q1 and that for a β+ decay is Q2. If m e denotes the mass of an electron, then which of the following statements is correct?


He23 and He13 nuclei have the same mass number. Do they have the same binding energy?


Calculate the binding energy of an alpha particle in MeV. Given

mass of a proton = 1.007825 u

mass of a neutron = 1.008665 u

mass of He nucleus = 4.002800 u

1u = 931 MeV/c2


Define binding energy per nucleon.


State the significance of binding energy per nucleon.


What is binding energy of nucleus?


Find the binding energy per nucleon of 235U based on the information given below.

  Mass(u)
mass of neutral `""_92^235"U"` 235.0439
mass of a proton 1.0073
mass of a neutron 1.0087

Mp denotes the mass of a proton and Mn that of a neutron. A given nucleus, of binding energy B, contains Z protons and N neutrons. The mass M(N, Z) of the nucleus is given by (c is the velocity of light):


Which of the following statements about binding energy per nucleon is incorrect?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×