The decay of a proton to neutron is :
The decay of a proton to neutron is :
- [JEE MAIN 2021]
- A
not possible as proton mass is less than the neutron mass
- B
possible only inside the nucleus
- C
not possible but neutron to proton conversion is possible
- D
always possible as it is associated only with $\beta^{+}$ decay
Similar Questions
The mass number of a nucleus is
The mass number of a nucleus is
- [IIT 1986]
Assertion $(A):$ Forces acting between proton-protn $\left(f_{p p}\right)$, proton-neutron $\left(f_{p p}\right)$ and neutron-neutron $\left(f_{n n}\right)$ are such that $f_{p p} < f_{p n}=f_{n n}$
Reason $(R):$ Electrostatic force of repulsion between two protons reduces net nuclear forces between them.
Assertion $(A):$ Forces acting between proton-protn $\left(f_{p p}\right)$, proton-neutron $\left(f_{p p}\right)$ and neutron-neutron $\left(f_{n n}\right)$ are such that $f_{p p} < f_{p n}=f_{n n}$
Reason $(R):$ Electrostatic force of repulsion between two protons reduces net nuclear forces between them.
- [AIIMS 2015]
If radius of the $^{27}_{13}Al$ nucleus is taken to be $R_{Al}$, then the radius of $^{125}_{53}Te$ nucleus is nearly
If radius of the $^{27}_{13}Al$ nucleus is taken to be $R_{Al}$, then the radius of $^{125}_{53}Te$ nucleus is nearly
- [AIPMT 1990]
Highly energetic electrons are bombarded on a target of an element containing $30$ neutrons. The ratio of radii of nucleus to that of Helium nucleus is ${14^{1/3}}$. The atomic number of nucleus will be
Highly energetic electrons are bombarded on a target of an element containing $30$ neutrons. The ratio of radii of nucleus to that of Helium nucleus is ${14^{1/3}}$. The atomic number of nucleus will be
Order of magnitude of density of uranium nucleus is $({m_p} = 1.67 \times {10^{ - 27}}kg)$
Order of magnitude of density of uranium nucleus is $({m_p} = 1.67 \times {10^{ - 27}}kg)$
- [IIT 1999]