MCQ
If Alpha, Beta and Gamma rays carry same momentum, which has the longest wavelength
  • A
    Alpha rays
  • B
    Beta rays
  • C
    Gamma rays
  • None, all have some wavelength

Answer

Correct option: D.
None, all have some wavelength
d
$\lambda  = \frac{h}{{mv}}$

If they have same momentum $(mv)$, they must have same wave length

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

Similar questions

$A$ closed planar wire loop of area $A$ and arbitrary shape is placed in a uniform magnetic field of magnitude $B$, with its plane perpendicular to magnetic field. The resistance of the wire loop is $R$. The loop is now turned upside down by $180^o$ so that its plane again becomes perpendicular to the magnetic field. The total charge that must have flowed through the wire ring in the process is
Ratio of magnetic intensities for an axial point and a point on broad side-on position at equal distance d from the centre of magnet will be or The magnetic field at a distance d from a short bar magnet in longitudinal and transverse positions are in the ratio
The current $i_1$ and $i_2$ through the resistor $R_1 (= 10\,\Omega )$ and $R_2 (=30 \,\Omega )$ in the circuit diagram with $E_1 = 3\,V, E_2 = 3\,V$ and $E_3 = 2\,V$ are respectively:
Coulomb's Law agrees with $........$?
Twelve resistors each of resistance $16 \,\Omega $ are connected in the circuit as shown. The net resistance between $AB$ (any two conjugate points of outer square) is ............... $\Omega$
A nuclear power plant supplying electrical power to a village uses a radioactive material of half life $T$ years as the fuel. The amount of fuel at the beginning is such that the total power requirement of the village is $12.5 \%$ of the electrical power available form the plant at that time. If the plant is able to meet the total power needs of the village for a maximum period of $n T$ years, then the value of $n$ is
In a transistor:
Penetrating power of $X$-rays increases with increase in
Nuclear binding energy is equivalent to
Let $\mathrm{F}_{\mathrm{pp}}, \mathrm{F}_{\mathrm{pn}}$ and $\mathrm{F}_{\mathrm{nn}}$ fill denote the magnitudes of the nuclear force by a proton on a proton, by a proton on a neutron and by a neutron on a neutron respectively. When the separation is $1fm:$