Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
(A) 0.8
(B) 7.8
(C) 200
(D) 10000

1 Answer

Answer :

(A) 0.8

Related questions

Description : A stationary `._(82)^(200)Pb` nucleus emits an `alpha`-particle with kinetic energy `T_(alpha) = 5.77 MeV`. Find the recoil velocity of a daughter nuc

Last Answer : A stationary `._(82)^(200)Pb` nucleus emits an `alpha`-particle with kinetic energy `T_( ... accounted for by the recoil energy of daughter nucleus ?

Description : A uranium nucleus `.^(235)U` liberates 200 MeV per fission 1.5 kg of uranium reacts during explosion of a uranium bomb. What is the mass of an equival

Last Answer : A uranium nucleus `.^(235)U` liberates 200 MeV per fission 1.5 kg of uranium reacts during explosion of a uranium ... TNT is `4.1 xx 10^(6) J//kg` ?

Description : Energy produced in the nuclear fission is of the order of __________ MeV. (A) 20 (B) 200 (C) 1000 (D) 2000

Last Answer : (B) 200

Description : Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV. (A) 20 (B) 200 (C) 500 (D) 2000

Last Answer : (B) 200

Description : How does Neutron emission from a nucleus affect an element?

Last Answer : It changes only the Atomic Mass.

Description : Emission of β-particles during radioactive decay of a substance is from (A) Innermost shell (B) Nucleus (C) Outermost shell (D) None of these

Last Answer : (B) Nucleus

Description : The radioactive isotope of hydrogen is called--------- and its nucleus contains --------proton and --- --neutron.

Last Answer : Ans: Tritium, one and two

Description : Calculate the energy released by fission of 1 g of `._(92)^(235)U`, assuming that an energy of 200 MeV is released by fission of each atom of `.^(235)

Last Answer : Calculate the energy released by fission of 1 g of `._(92)^(235)U`, assuming that an energy of 200 MeV is ... `= 6.023 xx 10^(26) kg mol^(-1)`)

Description : The Superconducting Super Collider will produce collisions with an energy of: w) 40 joules x) 40 MeV y) 40 TeV z) 200 TeV

Last Answer : ANSWER: Y -- 40 TeV

Description : The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron? (A) 159 (B) 1837 (C) 2537 (D) 10000

Last Answer : (B) 1837

Description : The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron? (A) 159 (B) 1837 (C) 2537 (D) 10000

Last Answer : Option C

Description : Energy equivalent to one atomic mass unit (amu) is __________ MeV. (A) 9.31 (B) 93.1 (C) 931 (D) 9310

Last Answer : (C) 931

Description : In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process. (A) 100 (B) 200-300 (C) 1000-10000 (D) 10

Last Answer : (C) 1000-10000

Description : In β-decay of radioactive material, the ratio of neutron to proton (A) Increases (B) Remain same (C) Decreases (D) Is unpredictable; may increase or decrease

Last Answer : (C) Decreases

Description : Pick out the wrong statement. (A) α-particle emission from a radioactive element makes it electrically negative (B) β-particle emission from a radioactive element makes it electrically ... ) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

Last Answer : (C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years

Description : The phenomenon of nuclear fission is opposite to that of (A) Radioactive decay (B) Thermionic emission (C) Nuclear fusion (D) Combustion

Last Answer : (C) Nuclear fusion

Description : β-rays emission in radioactive disintegration is always accompanied by the emission of (A) γ-rays (B) α-rays (C) Neutrons (D) None of these

Last Answer : (A) γ-rays

Description : Making use of the tables of atomic masses, find: (a) the mean binding energy per one nucleon in `O^(16)` nucleus (b) The binding energy of neutron and

Last Answer : Making use of the tables of atomic masses, find: (a) the mean binding energy per one nucleon in `O^( ... and an alpha-particle in a `B^(11)` nuclues.

Description : The binding energy of a nucleus is defined as one of the following. Is this definition: w) the energy equivalent to its mass x) the mass difference between its neutrons and protons y) the energy ... the difference between the mass of the nucleus and the sum of the masses of its protons and neutrons

Last Answer : ANSWER: Z -- THE DIFFERENCE BETWEEN THE MASS OF THE NUCLEUS AND THE UM 

Description : The phenomena of pair production occurs only when the energy of incident photon is least equal a) 10.2 MeV b) 1.02 MeV c) 1.02 eV d) 0.102 MeV

Last Answer : b) 1.02 MeV

Description : MeV is the unit of (A) Radioactivity (B) Energy (C) Potential difference (D) None of these

Last Answer : (B) Energy

Description : Positron is a/an (A) Nucleus having two protons (B) Helium nucleus (C) Electron with positive charge (D) Nucleus with one proton and one neutron

Last Answer : (C) Electron with positive charge

Description : A substance emits energy which is detected as a line emission in the visible region using a spectroscope. The origin of this energy is (a) Vibrational energy of the molecules (b) Rotational energy of the molecules (c) Energy of orbital electrons (d) Energy of protons in the nucleus.

Last Answer : Ans:(c)

Description : Statement-2 `beta` particle are emitted by nucleus Because Statement-2 : Following transformation take place in `beta`-emission. `._(0)^(1)n to ._(1)^

Last Answer : Statement-2 `beta` particle are emitted by nucleus Because Statement-2 : Following transformation take ... Statement-2 is false, statement-2 is true

Description : Let us consider emission of `alpha`particle from uranium nucleus: `._(92)^(235)U - ._(2)He^(4) to ._(90)Th^(231)` `{:(e = 92, e = 0, e = 90),(p = 92,

Last Answer : Let us consider emission of `alpha`particle from uranium nucleus: `._(92)^(235)U - ._( ... evolve energy C. annihilation D. absorption in the nucleus

Description : The rate of emission of radiation, when a radioactive sample is placed in water,_________.

Last Answer : The rate of emission of radiation, when a radioactive sample is placed in water,_________. A. ... C. remains the same D. Cannot be determined

Description : A nuclide of an alkaine earth metal undergoes radioactive deacy by emission of the `alpha-` particles in sucession. The group of the periodic tablle t

Last Answer : A nuclide of an alkaine earth metal undergoes radioactive deacy by emission of the `alpha-` particles in ... 6th group C. 14 th group D. 16th group

Description : When `._(13)^(27)Al` is bombarded whith `alpha`-particles, a radioactive isotope of phosphorus `._(15)^(30)P` with the emission of …. Is formed

Last Answer : When `._(13)^(27)Al` is bombarded whith `alpha`-particles, a radioactive isotope of phosphorus ` ... A. neutrons B. protons C. positrons D. electrons

Description : A radioactive substance does not undergo any change (in mass or charge) during – (1) ganuna-emission (2) oxidation (3) alpha-emission (4) beta-emission

Last Answer : (1) ganuna-emission Explanation: Gamma-rays do not carry any charge. These rays do not have any mass and hence can not be considered to be made up of particles.

Description : In radioactive decay, the emission of an electron is characteristic of: w) Alpha decay x) Beta decay y) Gamma decay z) X-rays

Last Answer : ANSWER: X -- BETA DECAY

Description : The emission of a positron from a radioactive atom is generally accompanied by the emission of one of the following. Is it accompanied by the emission of: w) a meson x) a baryon y) an antineutrino z) a neutrino

Last Answer : ANSWER: Z -- A NEUTRINO

Description : A radioactive substance does not undergo any change (in mass or charge) during (1) gamma-emission (2) oxidation (3) alpha-emission (4) beta-emission

Last Answer : gamma-emission

Description : The emission of an a-particle causes the resultant nucleus to have (A) More atomic weight and less atomic number (B) Less atomic weight and less atomic number (C) Less atomic weight and more atomic number (D) None of these

Last Answer : (A) More atomic weight and less atomic number

Description : The maximum energy of a deuteron coming out a cyclotron is 20 MeV. The maximum energy of proton that can be obtained from this acceleration is

Last Answer : The maximum energy of a deuteron coming out a cyclotron is 20 MeV. The maximum energy of proton that can be ... MeV B. 20 MeV C. 30 MeV D. 40 MeV

Description : The mass and energy equivalent to 1 a.m.u. respectively are - (1) 1.67 x 10−27 g, 9.30 MeV (2) 1.67 x 10−27kg, 930 MeV (3) 1.67 x 10−27kg, 1 MeV (4) 1.67 x 10−34 kg, 1 MeV

Last Answer : (2) 1.67 x 10−27kg, 930 MeV Explanation: The mass and energy equivalent to 1 a.m.u. respectively are 1.67 x 10−27kg, 930 MeV.

Description : The amount of energy required to completely remove an electron from the first Bohr orbit is a) 13.6 MeV b) 13.6 eV c) 1.36 MeV d) 1.36 eV

Last Answer : b) 13.6 eV

Description : When a nucleus in an atom undergoes a radioactive decay, the electronic energy levels of the atom.

Last Answer : When a nucleus in an atom undergoes a radioactive decay, the electronic energy levels of the ... decay processes D. Change for type of radioactivity.

Description : What type of radioactive decay releases energy from the nucleus without a change of protons neutrons?

Last Answer : This is a gamma-decay.

Description : Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is (A) 3 (B) 235 (C) 200 (D) 92

Last Answer : (A) 3

Description : `""_(92)U^(235)` nucleus absorbs a neutron and disintegrates into `""_(54)Xe^(139) .""_(38)Sr^(94)` and X. What will be the product X ?

Last Answer : `""_(92)U^(235)` nucleus absorbs a neutron and disintegrates into `""_(54)Xe^(139) .""_(38) ... B. 2-neutrons C. `alpha`-particles D. `beta`-particle

Description : The nucleus of a hydrogen atom consists of (a) One proton (b) One proton + two neutrons (c) One neutron only (d) One electron only

Last Answer : Ans:(a)

Description : Which one of the following has greatest mass? (1) electron (2) proton (3) neutron (4) hydrogen nucleus

Last Answer : (3) neutron

Description : The fundamental particles present in the nucleus of an atom are - (1) Electron, proton (2) Proton, neutron (3) Neutron, electron (4) Neutron, positron

Last Answer : (2) Proton, neutron Explanation: The nucleus is the very dense region consisting of protons and neutrons at the center of an atom. It was discovered in 1911, as a result of Ernest Rutherford's ... mass of an atom is located in the nucleus, with a very small contribution from the orbiting electrons.

Description : Nucleus of an atom consists of. (1) Proton (2) Neutron (3) Proton and Neutron (4) Electron, Proton and Neutron

Last Answer : (3) Proton and Neutron Explanation: The nucleus is the very dense region consisting of protons and neutrons at the center of an atom. It was discovered in 1911, as a result of Ernest Rutherford' ... of an atom is located in the nucleus, with a very small contribution from the orbiting electrons.

Description : The ability of an atom to absorb neutrons is its neutron capture cross section. The unit of measurement for neutron capture cross section is: w) the nucleus volume x) capture capacity y) resonance quotient z) barn

Last Answer : ANSWER: Z -- BARN

Description : Which one of the following has greatest mass ? (1) electron (2) proton (3) neutron (4) hydrogen nucleus

Last Answer : neutron

Description : The fundamental particles present in the nucleus of an atom are (1) Electron, proton (2) Proton, neutron (3) Neutron, electron (4) Neutron, positron

Last Answer : Proton, neutron

Description : Nucleus of an atom consists of. (1) Proton (2) Neutron (3) Proton and Neutron (4) Electron, Proton and Neutron

Last Answer :  Proton and Neutron

Description : One 'amu' is equivalent to (A) 9.31 MeV (B) 931 eV (C) 931 Mev (D) 931 J

Last Answer : (C) 931 Mev

Description : Radioactivity of an isotope is expressed in (A) Barn (B) MeV (C) Curie (D) Ergs

Last Answer : (C) Curie