| Two sources in phase producing waves are some distance apart |
| A) There is always a maximum in their neighbourhood |
| B) There is always a minimum in their neighbourhood |
| C) No maxima or minima in the neighbourhood |
| D) At least one maximum and one minimum in their neighbourhood |
| Two sources in phase producing waves are symmetrically located on either side of the origin on the x axis in the xy plane at a distance of 40 cm from each other. The waves produced by them in the medium have a wavelength of 20 cm. |
| A) All points on the y axis have maxima |
| B) All points on the x axis out side the sources have maxima |
| C) Both A and B |
| D) None |
| Two sources in phase producing waves are symmetrically located on either side of the origin on the x axis in the xy plane at a distance of 5 cm from each other. The waves produced by them in the medium have a wavelength of 20 cm. |
| A) All points on the y axis have maxima |
| B) All points on the x axis out side the sources have maxima |
| C) Both |
| D) None |
| Two sources in phase producing waves are symmetrically located on either side of the origin on the x axis in the xy plane at a distance of 50 cm from each other. The waves produced by them in the medium have a wavelength of 20 cm. Number of minima between the sources is |
| A) 2 | B) 3 | C) 4 | D) 5 |
| Two sources in phase separated by d = Nλ are located in a horizontal plane. No of maxima and minima are formed in their neighbourhood. Consider a circular path in the horizontal plane around the sources. The number of maxima on this circle are (d is the distance between the sources, N is an integer and λ is the wavelength of the waves in the medium due to the sources) |
| A) N | B) 2N | C) 3N | D) 4N |
| Two sources are L apart. P is point between the sources on the line joining them located d away from the mid point of the line joining the sources. Path difference between the waves arriving at P is |
| A) d | B) L | C) 2d | D) 2L |
| Two sources are located on the x axis at (-a,0) and (a,0). P is a point on the x – axis with coordinates (d,0). If d>a, path difference between the waves arriving at P is |
| A) d | B) L | C) 2d | D) 2L |