Chapter 31 – Nuclei
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A radioactive substance decays to 1/16th of its initial activity in 40 days. The half‐life of the radioactive substance expressed in days is
28
Nov
A radioactive substance decays to 1/16th of its initial activity in 40 days. The half‐life of the radioactive substance expressed in days is A radioactive substance decays to 1/16th of its initial activity in 40 days. The half‐life of the radioactive substance expressed in days is November 28, 2020 Category: AIIMS Last 24 Years Solved [...]
A certain radioactive element has a half-life of 20 years. If you had a block with 10 g of the element in it, after how many years will there be just 2.5 g of the element in the block?
28
Nov
A certain radioactive element has a half-life of 20 years. If you had a block with 10 g of the element in it, after how many years will there be just 2.5 g of the element in the block? A certain radioactive element has a half-life of 20 years. If you had a block with [...]
Half life of a substance is 20 minutes. What is the time between 33% decay and 67% decay?
28
Nov
Half life of a substance is 20 minutes. What is the time between 33% decay and 67% decay? Half life of a substance is 20 minutes. What is the time between 33% decay and 67% decay? November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter [...]
If the radioactive decay constant of radium is 1⋅07×10^−4 per year, then its half life period is approximately equal to
28
Nov
If the radioactive decay constant of radium is 1⋅07×10^−4 per year, then its half life period is approximately equal to If the radioactive decay constant of radium is 1⋅07×10^−4 per year then its half life period is approximately equal to November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry [...]
The binding energy per nucleon of deuteron (1H2) and helium atom ( 2He^4 ) is 1.1 MeV and 7 MeV respectively. If two deuteron atoms react to form a single helium atom, the released energy, is
28
Nov
The binding energy per nucleon of deuteron (1H2) and helium atom ( 2He^4 ) is 1.1 MeV and 7 MeV respectively. If two deuteron atoms react to form a single helium atom, the released energy, is is The binding energy per nucleon of deuteron (1H2) and helium atom ( 2He^4 ) is 1.1 MeV and [...]
Emission of β-rays in radioactive decay results in the change of
28
Nov
Emission of β-rays in radioactive decay results in the change of Emission of β-rays in radioactive decay results in the change of November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - Nuclei , Physics ,
If 92 U^238 undergoes successively 8 alpha decays and 6 beta-decays, then resulting nucleus is
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Nov
If 92 U^238 undergoes successively 8 alpha decays and 6 beta-decays, then resulting nucleus is If 92 U^238 undergoes successively 8 alpha decays and 6 beta-decays then resulting nucleus is November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - Nuclei , Physics ,
A nucleus emits one-alpha particle and forms a new nucleus. The mass and charge of the new nucleus is changed in one of the following way
28
Nov
A nucleus emits one-alpha particle and forms a new nucleus. The mass and charge of the new nucleus is changed in one of the following way A nucleus emits one-alpha particle and forms a new nucleus. The mass and charge of the new nucleus is changed in one of the following way November 28, 2020 [...]
A nucleus of 4Be^9 absorbs an alpha particle and emits a neutron. The resulting nucleus will be
28
Nov
A nucleus of 4Be^9 absorbs an alpha particle and emits a neutron. The resulting nucleus will be A nucleus of 4Be^9 absorbs an alpha particle and emits a neutron. The resulting nucleus will be November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - [...]
A tin nucleus has charge +50e. If the proton is at 10^-12 m from the nucleus, then the potential at this position, is (charge on proton is 1 ×6 × 10^-19 C)
28
Nov
A tin nucleus has charge +50e. If the proton is at 10^-12 m from the nucleus, then the potential at this position, is (charge on proton is 1 ×6 × 10^-19 C) A tin nucleus has charge +50e. If the proton is at 10^-12 m from the nucleus is (charge on proton is 1 ×6 [...]