Question
Difference between $\lambda _{k_{\alpha}}$ and $\lambda _{min}$ become twice if accelerating potential changes from $3100\ volt$ to $12400\ volt$ . Find $\lambda _{k_{\alpha} }$ ........$\mathop A\limits^o $ (Given $hc = 12400\ eVÅ$ )
✓
Answer
Get the step-by-step solution for this question inside the Vidyadip app.
Get the answer in the appNeed 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 steel ball of radius $2\, cm$ is at rest on a frictionless surface. Another ball of radius $4\,cm$ moving at a velocity of $81 \,cm/sec$ collides elastically with first ball. After collision the smaller ball moves with speed of ............. $\mathrm{cm} / \mathrm{sec}$
→Consider a solid sphere of radius $\mathrm{R}$ and mass density $\rho(\mathrm{r})=\rho_{0}\left(1-\frac{\mathrm{r}^{2}}{\mathrm{R}^{2}}\right), 0<\mathrm{r} \leq \mathrm{R} .$ The minimum density of a liquid in which it will float is
→A resonance tube is old and has jagged end. It is still used in the laboratory to determine velocity of sound in air. A tuning fork of frequency $512\,Hz$ produces first resonance when the tube is filled with water to a mark $11\,cm$ below a reference mark, near the open end of the tube. The experiment is repeated with another fork of frequency $256\,Hz$ which produces first resonance when water reaches a mark $27\,cm$ below the reference mark. The velocity of sound in air, obtained in the experiment, is close to .... $ms^{-1}$
→The ranges and heights for two projectiles projected with the same initial velocity at angles $42^{\circ}$ and $48^{\circ}$ with the horizontal are ${R}_{1}, {R}_{2}$ and ${H}_{1}$, ${H}_{2}$ respectively. Choose the correct option:
→A stretched string of length $l,$ fixed at both ends can sustain stationary waves of wavelength $\lambda ,$ given by
→In $NPN$ transistor, if doping in base region is increased then collector current
→A projectile can have the same range $R$ for two angles of projection. If $t_1$ and $t_2$ be the times of flights in the two cases, then the product of the two time of flights is proportional to
→Given in the figure are two blocks $A$ and $B$ of weight $20\ N$ and $100\ N,$ respectively. These are being pressed against a wall by a force $F$ as shown. If the coefficient of friction between the blocks is $0.1$ and between block $B$ and the wall is $0.15$, the frictional force applied by the wall on block $B$ is ........... $N$
→Here, $A$ and $B$ respectively are :-
→Aball is thrown vertically down with velocity of $5m/s$. With what velocity should another ball be thrown down after $2$ seconds so that it can hit the $1^{st}$ ball in $2$ seconds.........$m/s$
→