The mass of an $\alpha$-particle is
The mass of an $\alpha$-particle is
- [AIPMT 1992]
- A
Less than the sum of masses of two protons and two neutrons
- B
Equal to mass of four protons
- C
Equal to mass of four neutrons .
- D
Equal to sum of masses of two protons and two neutrons
Similar Questions
What is the nucleus of an atom ?
What is the nucleus of an atom ?
Two nuclei have their mass numbers in the ratio of $1 : 3.$ The ratio of their nuclear densities would be
Two nuclei have their mass numbers in the ratio of $1 : 3.$ The ratio of their nuclear densities would be
- [AIPMT 2008]
$\pi $ mesons can be
$\pi $ mesons can be
The charge density in a nucleus varies with distance from the centre of the nucleus according to the curve in Fig.
The charge density in a nucleus varies with distance from the centre of the nucleus according to the curve in Fig.
The mass density of a nucleus varies with mass number $A$ as
The mass density of a nucleus varies with mass number $A$ as
- [AIPMT 1992]