MCQ
To demonstrate the phenomenon of interference, we require two sources which emit radiation of
- Anearly the same frequency
- Bthe same frequency
- Cdifferent wavelengths
- ✓the same frequency and having a definite phase relationship
✓
Answer
Correct option: D.
the same frequency and having a definite phase relationship
d
As for an Interference, Two Sources must be Coherent, hence the two sources must have the same frequency and a definite phase relationship.
As for an Interference, Two Sources must be Coherent, hence the two sources must have the same frequency and a definite phase relationship.
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
In a fission process, nucleus $A$ divides into two nuclei $B$ and $C,$ their binding energies being ${E_a},\;{E_b}$ and ${E_c}$ respectively. Then
→A body of capacity 4μF is charged to 80 V and another body of capacity 6μF is charged to 30V. When they are connected the energy lost by 4 μF capacitor is
Two nucleons are at a separation of $1 \times 10^{-15} m$. The net force between them is $F_1$, if both are neutrons, $F_2$ if both are protons and $F_3$ if one is a proton and other is a neutron. In such a case
→A coil with $100$ turns has an inductance of $0.05H$ and $0.02A$ current is passed through it. Flux linked with the coil is
→The area of the plates of a parallel plate condenser is $A$ and the distance between the plates is $10\,mm$. There are two dielectric sheets in it, one of dielectric constant $10$ and thickness $6\,mm$ and the other of dielectric constant $5$ and thickness $4\,mm$. The capacity of the condenser is
→A metal rod moves at a constant velocity in a direction perpendicular to its length. A constant uniform magnetic field exists in space in a direction perpendicular to the rod as well as its velocity. Select the correct statement(s) from the following
An amplifier has a voltage gain $A_v = 1000$. The voltage gain in $dB$ is...........
→A parallel plate capacitor is connected to a battery as shown in Fig. Consider two situations: A: Key K is kept closed and plates of capacitors are moved apart using insulating handle. B: Key K is opened and plates of capacitors are moved apart using insulating handle. Choose the correct option(s).
Consider the nuclear fission $Ne^{20} \to 2He^4 + C^{12}$ .Given that the binding energy / nucleon of $Ne^{20}, He^4$ and $C^{12}$ are, respectively, $8.03\, MeV$, $7.07\, MeV$, and $7.86\, MeV$, identify the correct statement
→Which of the following is not a correct statement