MCQ
The electron emitted in beta radiation originates from
- AInner orbits of atoms
- BFree electrons existing in nuclei
- ✓Decay of a neutron in a nucleus
- DPhoton escaping from the nucleus
✓
Answer
Correct option: C.
Decay of a neutron in a nucleus
c
(c)During $\beta$-decay, a neutron is transformed into a proton and an electron.
(c)During $\beta$-decay, a neutron is transformed into a proton and an electron.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Electron beam used in an electron microscope, when accelerated by a voltage of $20\,kV$. has a de-Broglie wavelength of $\lambda_0$. If the voltage is increased to $40\,kV$. then the de-Broglie wavelength associated with the electron beam would be:
→The following diagram indicates the energy levels of a certain atom when the system moves from 2E level to E, a photon of wavelength λ is emitted. The wavelength of photon produced during its transition from $\frac{4E}{3}$ level to E is
→Half life of radioactive element depends upon
The focal length of a convex lens is 10 cm and its refractive index is 1.5. If the radius of curvature of one surface is 7.5 cm, the radius of curvature of the second surface will be
What will happen when a 40 watt, 220 volt lamp and 100 watt, 220 volt lamp are connected in series across 40 volt supply
Four modifications are suggested in the lens formula to include the effect of the thickness t of the lens. Which one is likely to be correct?
The resistance of 10 metre long potentiometer wire is 1ohm/meter. A cell of e.m.f. 2.2 volts and a high resistance box are connected in series to this wire. The value of resistance taken from resistance box for getting potential gradient of 2.2 millivolt/metre will be
If maximum energy is stored in capacitor at $t =0$ then find the time after which current in the circuit will be maximum.
→The reading of voltmeter in the circuit shown is ............. $V$
→For $\text{MRI}$, a patient is slowly pushed in a time of $10 s$ within the coils of the magnet where magnetic field is $B = 2.0 T$. If the patient's trunk is $0.8 m$ in circumference, the induced emf around the patient's trunk is
→