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

When milk is churned, cream gets separated due to
If value of  $R$  is changed then
From the top of a tower two stones, whose masses are in the ratio $1  :2$ are thrown one straight up with an initial speed $u$ and the second straight down with the same speed $u$. Then, neglecting air resistance
A thin wire of length $2\,m$ is placed perpendicular to the $x-y$ plane. It is moved with velocity $\overrightarrow v  = \left( {2\hat i + 3\hat j + \hat k} \right)\,m/s$ through a region of magnetic induction $\overrightarrow B  = \left( {\hat i + 2\hat j} \right)\,wb/{m^2} .$ The potential difference induced between the ends of the wire is......$volts$
A fish at a depth of $12\,cm$ in water is viewed by an observer on the bank of a lake. To what height the image of the fish is raised?.......$cm$ (Refractive index of lake water $= 4/3$ )
The wavelength of light in two liquids $‘x' $ and $‘y' $ is $3500 Å$ and $7000 Å$, then the critical angle of $x$ relative to $y$ will be.......$^o$
A sphere is rolling without slipping on a fixed horizontal plane surface. $A$ is the point of contact, $B$ is the centre of the sphere and $C$ is top most point.Then
If the value of g at the surface of the earth is $9.8$ $m/{\sec ^2}$, then the value of g at a place $480\, km$ above the surface of the earth will be .......... $m/{\sec ^2}$. (Radius of the earth is $6400\, km$)   
A satellite revolves in the geostationary orbit but in a direction east to west. The time interval between its successive passing about a point on the equator is ........ $hrs$
In $NPN$ transistor, if doping in base region is increased then collector current