MCQ
If the phase difference between the two wave is 2$\pi $ during superposition, then the resultant amplitude is
- ✓Maximum
- BMinimum
- CMaximum or minimum
- DNone of the above
✓
Answer
Correct option: A.
Maximum
a
(a) Phase difference is $2\pi $ means constrictive interference so resultant amplitude will be maximum.
(a) Phase difference is $2\pi $ means constrictive interference so resultant amplitude will be maximum.
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
Assertion : In Young's double slit experiment the two slits are at distance $d$ apart. Interference pattern is observed on a screen at distance $D$ from the slits. At a point onthe screen when it is directly opposite to one of the slits, a dark fringe is observed. Then, the wavelength of wave is proportional to square of distance of two slits
→Reason : For a dark fringe intensity is zero.
An alternating current source of frequency $100\, Hz$ is joined to a combination of a resistance, a capacitance and a coil in series. The potential difference across the coil, the resistance and the capacitor is $46, \,8$ and $40\, volt$ respectively. The electromotive force of alternating current source in volt is
→Abarometer tube, containing mercury, is lowered in a vessel containing mercury until only $50\,\, cm$ of the tube is above the level of mercury in the vessel. If the atmospheric pressure is $75 \,\,cm$ of mercury, what is the pressure at the top of the tube?
→The pressure at the bottom of a water tank is $4 P$. where $P$ is atmospheric pressure. If water is drawn out till the water level decreases by $\frac{3}{5}$ th, then pressure at the bottom of the tank is .........
→A FM Broad cast transmitter, using modulating signal of frequency $20\,kHz$ has a deviation ratio of $10$. The Bandwidth required for transmission is $.......kHz$
→The ratio of intensities at two points $P$ and $Q$ on the screen in a Young's double slit experiment where phase difference between two wave of same amplitude are $\pi / 3$ and $\pi / 2$, respectively are
→A uniformly charged thin spherical shell of radius $\mathrm{R}$ carries uniform surface charge density of $\sigma$ per unit area. It is made of two hemispherical shells, held together by pressing them with force $\mathrm{F}$ (see figure). $\mathrm{F}$ is proportional to
→In a series $LCR$ circuit, the frequency of source is half of the resonance frequency. The nature of the circuit will be:-
→The angular speed of seconds needle in a mechanical watch is
In an electron microscope, the resolution that can be achieved is of the order of the wavelength of electrons used. To resolve a width of $7.5 \times 10^{-12}\, m$, the minimum electron energy required is close to .............. $keV$
→