MCQ
The graph between wave number $(\bar \nu )$ and angular frequency ($\omega$) is

  • B

  • C

  • D

Answer

Correct option: A.

a
(a) $\omega = 2\pi \nu = \frac{{2\pi c}}{\lambda } = 2\pi c\bar \nu $

==> $\omega \propto \bar \nu $.

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

An ammeter reads upto $1\, ampere$. Its internal resistance is $0.81\, ohm$. To increase the range to $10\, A$ the value of the required shunt is ............ $\Omega $
The electric field at a point on equatorial line of a dipole and direction of the dipole moment
Two vertical poles are at distance of $6.28\,m$. from each other, what should the maximum distance of an observer from poles to see them separately......$km$
If a current increases from zero to one ampere in $0.1$ second in a coil of $5\ mH$, then the magnitude of the induced $e.m.f.$ will be.
A rod of length $60 \mathrm{~cm}$ rotates with a uniform angular velocity $20 \mathrm{rad} \mathrm{s}^{-1}$ about its perpendicular bisector, in a uniform magnetic field $0.5 \mathrm{~T}$. The direction of magnetic field is parallel to the axis of rotation. The potential difference between the two ends of the rod is________.$V.$
Two wires '$A$' and '$B$' of the same material have their lengths in the ratio $1 : 2$ and radii in the ratio $2 : 1$. The two wires are connected in parallel across a battery. The ratio of the heat produced in '$A$' to the heat produced in '$B$' for the same time is
The charge across the capacitor in two different $RC$ circuits $1$ and $2$ are plotted as shown in figure. Identify the correct statement$(s)$ related to the $R_1, R_2, C_1 $ and $C_2$ of the two $RC$ circuits.
Two small balls having the same mass and charge and located on the same vertical at heights $h_1$ and $h_2$ are thrown in the same direction along the horizontal at the same velocity $v$ . The first ball touches the ground at a distance $I$ from the initial vertical. At what height $H _2$ will the second ball be at this instant ? The air drag and the effect of the charges induced on the ground should be neglected.
In Fig. $X$ represents time and $Y$ represents activity of a radioactive sample. Then the activity of sample, varies with time according to the curve
A biconvex lens of focal length f is cut into two identical plano convex lenses. The focal length of each part will be