MCQ
The condition for a stable wave is
  • A
    $n\lambda  = 6\prod r$
  • B
    $n\lambda  = \frac{1}{2}\prod r$
  • $n\lambda  = 8\prod r$
  • D
    $n\lambda  = 4\prod r$

Answer

Correct option: C.
$n\lambda  = 8\prod r$
c

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

The heat of hydrogenation for $3$ -methylbutene and $2$ -pentene are $-30\, kcal/mol$ and $-28\,kcal/mol$ respectively. The heats of combustion of $2$ -methylbutane and  pentane are - $784 \,kcal / mol$ and $-782 \,kcal/mol$ respectively. All the values are  given under standard conditions. Taking into account that combustion of both alkanes  give the same products, what is $\Delta H$ (in $kcal/mol$) for the following reaction under  same conditions ?
Given the correct order of initials $T$ or $F$ for following statements. Use $T$ if  statements is true and $F$ if it is false

$(I)\, (CH_3)_2P(CF_3)_3$ is non-polar and $(CH_3)_3P(CF_3)_2$ is polar  molecule
$(II)\, CH_3 \widehat{P} CH_3$ bond angles are equal in $(CH_3)_3P(CF_3)_2$ molecule
$(III)\,PF_3$ will be more soluble in polar solvent than $SiF_4$

Correct set of four quantum numbers for valence electron of rubidium $ (Z = 37)$  is
Chemical process that converts one member of a homologous series to the next member is called as:
The incorrect statement is
The formation of $S{O_3}$ takes place according to the following reaction, $2S{O_2} + {O_2}$ $\rightleftharpoons$ $2S{O_3}$; $\Delta H = - 45.2\;k\,cal$ The formation of $S{O_3}$ is favoured by
Which of the following sets of quantum numbers is not possible ?
The equilibrium constant for a reaction is 10 . What will be the value of $\Delta G^0$ ? $R =8.314 JK ^{-1}, T=300 K, T =$ 300 K ?
Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelenght $8000\,\mathop A\limits^o $. What should be the maximum velocity of emitted electron when the same metal surface is exposed to radiation of wavelength $5000\,\mathop A\limits^o $ ? $\left( {h = 6.6 \times {{10}^{ - 34}}}\ J.s \right)$
2SO2(​g) ​+ O2(​g) ​⇋ 2SO3(​g) ​+ QkJ
In the above reaction, how can the yield of product be increased without increasing the pressure?