MCQ
Beta rays emitted by a radioactive material are:
- AElectromagnetic radiations.
- BThe electrons orbiting around the nucleus.
- ✓Charged particles emitted by nucleus.
- DNeutral particles.
✓
Answer
Correct option: C.
Charged particles emitted by nucleus.
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
A compound lens has been manufactured by combining lenses of power +2.50 D and -3.75 D . The value of its focal length in cm will be :
An oil drop having charge 2e is kept stationary between two parallel horizontal plates 2.0 cm apart when a potential difference of 12000 volts is applied between them. If the density of oil is 900 kg/m$^3$, the radius of the drop will be
→What will be reading of voltmeter ................. $V$
→The ratio of secondary to primary turns is $9:4.$ If power input is $P$, what will be the ratio of power output (neglect all losses) to power input
→the magnetic induction at $O$ due to the whole length of the conductor is
→For a prism of apex angle $45^o$, it is found that the angle of emergence is $45^o$ for grazing incidence. Calculate the refractive index of the prism.
→A circuit of resistacne $R$ is connected to $n$ similar cells. If the current in the circuit is the same when the cells are connected in series or in parallel. If the internal resistacne $r$ of each cell then
→A resistance of $40\, \Omega$ and an inductance of $95.5$ millihenry are connected in series in a $50$ cycles/second ac circuit. The impedance of this combination is very nearly.....$ohm$
→In Young's double slit experiment, if one of the slit is closed fully, then in the interference pattern
A study of binary stars is most helpful in