MCQ
The maximum wavelength that a sample of hydrogen atoms can absorb is
  • A
    $912 \,\mathring A$
  • $1216 \,\mathring A$
  • C
    $1028 \,\mathring A$
  • D
    Infinite

Answer

Correct option: B.
$1216 \,\mathring A$
b
(b)

$\frac{1}{\lambda_{\max }}=R\left(\frac{1}{1^2}-\frac{1}{2^2}\right)$

Solve for $\lambda_{\max }$

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

Two identical short bar magnets, each having magnetic moment M, are placed a distance of 2d apart with axes perpendicular to each other in a horizontal plane. The magnetic induction at a point midway between them is
Nuclear fusion is common to the pair
Wave front is locus of all the points where the particles of the medium vibrate with the same
The work function of a substance is $4.0 \,eV$. The longest wavelength of light that can cause photoelectron emission from this substance is approximately ......... $nm$
In an $ac$ circuit the reactance of a coil is $\sqrt 3 $ times its resistance, the phase difference between the voltage across the coil to the current through the coil will be
A nucleus of element $X$ is represented as $^{56}_{26}\text{X}$
Which is an isotope of element $X?$
In photoelectric effect, the K.E. of electrons emitted from the metal surface depends upon
A charged body has an electric flux $F$ associated with it. Now if the body is place inside a conducting shell then the electric flux outside the shell is:
Consider a tank made of glass (refractive index $1.5$) with a thick bottom. It is filled with a liquid of refractive index $\mu $. A student finds that, irrespective of what the incident angle $I$ (see figure) is for a beam of light entering the liquid, the light reflected from the liquid glass interface is never completely polarized. For this to happen, the minimum value of $\mu $ is
Assertion : In a simple battery circuit, the point of the lowest potential is positive terminal of the battery.

Reason : The current flows towards the point of the higher potential, as it does in such a circuit from the negative to the positive terminal.