MCQ
In a wave, the path difference corresponding to a phase difference of $ \phi$ is
- A$\frac{\pi }{{2\lambda }}\phi$
- B$\frac{\pi }{\lambda }\phi $
- ✓$\frac{\lambda }{{2\pi }}\phi$
- D$\frac{\lambda }{\pi }\phi$
✓
Answer
Correct option: C.
$\frac{\lambda }{{2\pi }}\phi$
c
(c)For $2$ $\pi$ phase difference $\to$ Path difference is $\lambda$
For $\phi $ phase difference $\to$ Path difference is $\frac{\lambda }{{2\pi }} \times \phi$
(c)For $2$ $\pi$ phase difference $\to$ Path difference is $\lambda$
For $\phi $ phase difference $\to$ Path difference is $\frac{\lambda }{{2\pi }} \times \phi$
Need 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 liquid is flowing in a horizontal uniform capillary tube under a constant pressure difference $P$. The value of pressure for which the rate of flow of the liquid is doubled when the radius and length both are doubled is
→The current in the given circuit is ................ $A$
→The $SI$ unit of inductance, the henry, can be written as
→In the combination of the following gates the output $Y$ can be written in terms of inputs $A$ and $B$ as
→Digital movie projectors work on the principle of
A wave motion has the function $y = {a_0}\sin (\omega \,t - kx)$. The graph in figure shows how the displacement $y$ at a fixed point varies with time $t$. Which one of the labelled points shows a displacement equal to that at the position $x = \frac{\pi }{{2k}}$ at time $t = 0$
→When a bar magnet is freely suspended for oscillation then time period is $T$. If it is cut in $3$ equal parts perpendicular to its length then time period of oscillation for each part will be
→The electric field between the two parallel plates of a capacitor of $1.5 \mu \mathrm{F}$ capacitance drops to one third of its initial value in $6.6 \mu \mathrm{s}$ when the plates are connected by a thin wire. The resistance of this wire is. . . . . . . .$\Omega$. (Given, $\log 3=1.1)$
→Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because
When a body is earth connected, electrons from the earth flow into the body. This means the body is…..