During a negative beta decay - Vidyadip

MCQ

During a negative beta decay

A
An atomic electron is ejected
B
An electron which is already present within the nucleus is ejected
✓
A neutron in the nucleus decays emitting an electron
D
A part of the binding energy is converted into electron

✓

Answer

Correct option: C.

A neutron in the nucleus decays emitting an electron

c
(c)Negative $\beta - $decay is expressed by the equation
$n = {p^ + } + {e^ - } + {\nu ^ - }$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 13. Nuclei→13. Nuclei — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The shortest wavelength in Balmer’s series for Hydrogen atom is $...A...$ and this is obtained by substituting $...B ...$ in Balmer’s formula. Here, $A$ and $B$ refer to?

$A $ magnet freely suspended in a vibration magnetometer makes $10 $ oscillations per minute at a place $A$ and $20 $ oscillations per minute at a place $B$. If the horizontal component of earth’s magnetic field at $A$ is $36 \times {10^{ - 6}}\,T$, then its value at $B$ is

The Avogadro's number is $6\times 10^{23} $ per gm mole and electronic charge is $1.6\times 10^{-19}$ C . The Faraday's number is

A parallel plate air capacitor has capacity $C,$ distance of separation between plates is $d$ and potential difference $V$ is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is

A converging beam of rays is incident on a diverging lens. Having passed through the lens the rays intersect at a point $15\,\, cm$ from the lens on the opposite side. If the lens is removed the point where the rays meet will move $5\,\, cm$ closer to the lens. The focal length of the lens is......$cm$

The energy of hydrogen-atom in its ground state is $-13.6 \,eV$. The energy of the level corresponding to $n=5$ is ........ $eV$

An equiconvex lens of glass of focal length $0.1$ metre is cut along a plane perpendicular to principle axis into two equal parts. The ratio of focal length of new lenses formed is

A short bar magnet placed with its axis at $ 30° $ with a uniform external magnetic field of $0.16 $ $Tesla$ experiences a torque of magnitude $0.032$ $Joule$. The magnetic moment of the bar magnet will be......$Joule/Tesla$

The image of an object placed in air formed by a convex refracting surface is at a distance of $10\, m$ behind the surface. The image is real and is at $\frac{2}{3}$ of the distance of the object from the surface . The wavelength of light inside the surface is $\frac{2}{3}$ times the wavelength in air. The radius of the curved surface is $\frac{ x }{13}\, m$. the value of $^{\prime} x^{\prime}$ is ....... .