NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXII13:NUCLEI
363893
Assertion : The mass of \(\beta \)-particles when they are emitted is higher than the mass of electrons obtained by other means. Reason : \(\beta \)-particles and electron, both are similar particles.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(\beta \)-particles are emitted with energy with very high velocity. So, according to Einstein’s theory of relativity, the mass of a \(\beta \)-particle is much higher compared to its rest mass \(\left( {{m_0}} \right).\) But \(\beta {\rm{ - }}\)particle and electron both are similar particles. So option (2) is correct.
PHXII13:NUCLEI
363894
\(\beta \) decay means emission of electron from
1 Innermost electron orbit
2 A stable nucleus
3 Outermost electron orbit
4 Radioactive nucleus
Explanation:
In beta minus \(\left( {{\beta ^ - }} \right)\) decay, an electron is emitted by the radioactive nucleus, as in the decay \({}_{15}^{32}P \to {}_{16}^{32}S{ + _{ - 1}}{e^0} + \overline v \) where \(\overline v \) is the antineutrino In beta plus \(\left( {{\beta ^ + }} \right)\) decay, a positron is emitted by the radioactive nucleus, as in the decay \({}_{11}^{22}Na \to {}_{10}^{22}Ne + {e^ + } + v\) where \(v\) is the neutrino
KCET - 2009
PHXII13:NUCLEI
363895
During \({\beta ^ - }\) - decay, a neutron inside nucleus converts into proton, electron and \(X\). The particle \(X\) is
1 \({\pi ^ + }\)- meson
2 Neutrino
3 Anti-neutrino
4 \({\pi ^ - }\)- meson
Explanation:
The neutron decay is \({}_0^1n \to {}_1^1P + {}_{ - 1}^0e + \bar v\)
PHXII13:NUCLEI
363896
In radioactive decay process, the negatively charged emitted \(\beta\)-particles are
1 the electrons present inside the nucleus
2 the electrons produced as a result of the decay of neutrons inside the nucleus
3 the electrons produced as a result of collisions between atoms
4 the electrons orbiting around the nucleus
Explanation:
Beta decay can involve the emission of either electrons or positrons. The electrons or positrons emitted in a \(\beta\)-decay do not exist inside the nucleus. They are only created at the time of emission, just as photons are created when an atom makes a transition from higher to a lower energy state. In negative \(\beta\)-decay a neutron in the nucleus is transformed into a proton, an electron and an anti-neutrino.Hence, in radioactive decay process, the negatively charged emitted\(\beta\)-particles are the electrons produced as a result of the decay of neutrons present inside the nucleus.
363893
Assertion : The mass of \(\beta \)-particles when they are emitted is higher than the mass of electrons obtained by other means. Reason : \(\beta \)-particles and electron, both are similar particles.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(\beta \)-particles are emitted with energy with very high velocity. So, according to Einstein’s theory of relativity, the mass of a \(\beta \)-particle is much higher compared to its rest mass \(\left( {{m_0}} \right).\) But \(\beta {\rm{ - }}\)particle and electron both are similar particles. So option (2) is correct.
PHXII13:NUCLEI
363894
\(\beta \) decay means emission of electron from
1 Innermost electron orbit
2 A stable nucleus
3 Outermost electron orbit
4 Radioactive nucleus
Explanation:
In beta minus \(\left( {{\beta ^ - }} \right)\) decay, an electron is emitted by the radioactive nucleus, as in the decay \({}_{15}^{32}P \to {}_{16}^{32}S{ + _{ - 1}}{e^0} + \overline v \) where \(\overline v \) is the antineutrino In beta plus \(\left( {{\beta ^ + }} \right)\) decay, a positron is emitted by the radioactive nucleus, as in the decay \({}_{11}^{22}Na \to {}_{10}^{22}Ne + {e^ + } + v\) where \(v\) is the neutrino
KCET - 2009
PHXII13:NUCLEI
363895
During \({\beta ^ - }\) - decay, a neutron inside nucleus converts into proton, electron and \(X\). The particle \(X\) is
1 \({\pi ^ + }\)- meson
2 Neutrino
3 Anti-neutrino
4 \({\pi ^ - }\)- meson
Explanation:
The neutron decay is \({}_0^1n \to {}_1^1P + {}_{ - 1}^0e + \bar v\)
PHXII13:NUCLEI
363896
In radioactive decay process, the negatively charged emitted \(\beta\)-particles are
1 the electrons present inside the nucleus
2 the electrons produced as a result of the decay of neutrons inside the nucleus
3 the electrons produced as a result of collisions between atoms
4 the electrons orbiting around the nucleus
Explanation:
Beta decay can involve the emission of either electrons or positrons. The electrons or positrons emitted in a \(\beta\)-decay do not exist inside the nucleus. They are only created at the time of emission, just as photons are created when an atom makes a transition from higher to a lower energy state. In negative \(\beta\)-decay a neutron in the nucleus is transformed into a proton, an electron and an anti-neutrino.Hence, in radioactive decay process, the negatively charged emitted\(\beta\)-particles are the electrons produced as a result of the decay of neutrons present inside the nucleus.
363893
Assertion : The mass of \(\beta \)-particles when they are emitted is higher than the mass of electrons obtained by other means. Reason : \(\beta \)-particles and electron, both are similar particles.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(\beta \)-particles are emitted with energy with very high velocity. So, according to Einstein’s theory of relativity, the mass of a \(\beta \)-particle is much higher compared to its rest mass \(\left( {{m_0}} \right).\) But \(\beta {\rm{ - }}\)particle and electron both are similar particles. So option (2) is correct.
PHXII13:NUCLEI
363894
\(\beta \) decay means emission of electron from
1 Innermost electron orbit
2 A stable nucleus
3 Outermost electron orbit
4 Radioactive nucleus
Explanation:
In beta minus \(\left( {{\beta ^ - }} \right)\) decay, an electron is emitted by the radioactive nucleus, as in the decay \({}_{15}^{32}P \to {}_{16}^{32}S{ + _{ - 1}}{e^0} + \overline v \) where \(\overline v \) is the antineutrino In beta plus \(\left( {{\beta ^ + }} \right)\) decay, a positron is emitted by the radioactive nucleus, as in the decay \({}_{11}^{22}Na \to {}_{10}^{22}Ne + {e^ + } + v\) where \(v\) is the neutrino
KCET - 2009
PHXII13:NUCLEI
363895
During \({\beta ^ - }\) - decay, a neutron inside nucleus converts into proton, electron and \(X\). The particle \(X\) is
1 \({\pi ^ + }\)- meson
2 Neutrino
3 Anti-neutrino
4 \({\pi ^ - }\)- meson
Explanation:
The neutron decay is \({}_0^1n \to {}_1^1P + {}_{ - 1}^0e + \bar v\)
PHXII13:NUCLEI
363896
In radioactive decay process, the negatively charged emitted \(\beta\)-particles are
1 the electrons present inside the nucleus
2 the electrons produced as a result of the decay of neutrons inside the nucleus
3 the electrons produced as a result of collisions between atoms
4 the electrons orbiting around the nucleus
Explanation:
Beta decay can involve the emission of either electrons or positrons. The electrons or positrons emitted in a \(\beta\)-decay do not exist inside the nucleus. They are only created at the time of emission, just as photons are created when an atom makes a transition from higher to a lower energy state. In negative \(\beta\)-decay a neutron in the nucleus is transformed into a proton, an electron and an anti-neutrino.Hence, in radioactive decay process, the negatively charged emitted\(\beta\)-particles are the electrons produced as a result of the decay of neutrons present inside the nucleus.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
PHXII13:NUCLEI
363893
Assertion : The mass of \(\beta \)-particles when they are emitted is higher than the mass of electrons obtained by other means. Reason : \(\beta \)-particles and electron, both are similar particles.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(\beta \)-particles are emitted with energy with very high velocity. So, according to Einstein’s theory of relativity, the mass of a \(\beta \)-particle is much higher compared to its rest mass \(\left( {{m_0}} \right).\) But \(\beta {\rm{ - }}\)particle and electron both are similar particles. So option (2) is correct.
PHXII13:NUCLEI
363894
\(\beta \) decay means emission of electron from
1 Innermost electron orbit
2 A stable nucleus
3 Outermost electron orbit
4 Radioactive nucleus
Explanation:
In beta minus \(\left( {{\beta ^ - }} \right)\) decay, an electron is emitted by the radioactive nucleus, as in the decay \({}_{15}^{32}P \to {}_{16}^{32}S{ + _{ - 1}}{e^0} + \overline v \) where \(\overline v \) is the antineutrino In beta plus \(\left( {{\beta ^ + }} \right)\) decay, a positron is emitted by the radioactive nucleus, as in the decay \({}_{11}^{22}Na \to {}_{10}^{22}Ne + {e^ + } + v\) where \(v\) is the neutrino
KCET - 2009
PHXII13:NUCLEI
363895
During \({\beta ^ - }\) - decay, a neutron inside nucleus converts into proton, electron and \(X\). The particle \(X\) is
1 \({\pi ^ + }\)- meson
2 Neutrino
3 Anti-neutrino
4 \({\pi ^ - }\)- meson
Explanation:
The neutron decay is \({}_0^1n \to {}_1^1P + {}_{ - 1}^0e + \bar v\)
PHXII13:NUCLEI
363896
In radioactive decay process, the negatively charged emitted \(\beta\)-particles are
1 the electrons present inside the nucleus
2 the electrons produced as a result of the decay of neutrons inside the nucleus
3 the electrons produced as a result of collisions between atoms
4 the electrons orbiting around the nucleus
Explanation:
Beta decay can involve the emission of either electrons or positrons. The electrons or positrons emitted in a \(\beta\)-decay do not exist inside the nucleus. They are only created at the time of emission, just as photons are created when an atom makes a transition from higher to a lower energy state. In negative \(\beta\)-decay a neutron in the nucleus is transformed into a proton, an electron and an anti-neutrino.Hence, in radioactive decay process, the negatively charged emitted\(\beta\)-particles are the electrons produced as a result of the decay of neutrons present inside the nucleus.