Question
To demonstrate the phenomenon of interference, we require two sources which emit radiation(a) Of the same frequency and having a define phase relationship(b) Of nearly the same frequency(c) Of the same frequency (d) Of different wavelengths
✓
Answer
(a) Of the same frequency and having a define 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
Which of the following type of radiations are radiated by on oscillating electric charge?
Amount of light entering into the camera depends upon(a) Focal length of the objective lens(b) Product of focal length and diameter of the objective lens(c) Distance of the object from camera(d) Aperture setting of the camera
One end of a light spring of spring constant k is fixed to a wall and the other end is tied to a block placed on a smooth horizontal surface. In a displacement, the work done by the spring is $\frac{1}{2}\text{kx}^2.$ The possible cases are:
→- At spring was initially compressed by a distance x and was finally in its natural length.
- It was initially stretched by a distance x and and finally was in its natural length.
- It was initially in its natural length and finally in a compressed position.
- It was initially in its natural length and finally in a stretched position.
An electron is revolving around a proton in a circular orbit of diameter $0.1 \ nm$ . It produces a magnetic field of $14 Wb / m ^2$ at the proton. What is angular speed of the electron?
→A long, straight wire carries a current i. The magnetizing field intensity H is measured at a point P close to the wire. A long, cylindrical iron rod is brought close to the wire so that the point P is at the centre the rod. The value of H at P will:
ECG is a method of diagnosis used to check the functioning of heart, it is based on the principle that there is:
In which of the following situations, the heavier of the two particles has smaller de Broglie wavelength? The two particles:
The power of an achromatic convergent lens of two lenses is + 2D. The power of convex lens is + 5D. The ratio of dispersive power of convex and concave lens will be (a) 5 : 3 (b) 3 : 5(c) 2 : 5 (d) 5 : 2
A toroid of n turns, mean radius R and cross-sectional radius a carries current I. It is placed on a horizontal table taken as x-y plane. It's magnetic moment m:
The current in the circuit shown in the figure considering ideal diode is
