Intensity Explanation in YDSE
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Two coherent monochromatic beams of intensities and respectively are superposed. The ration of the maximum and minimum intensities in the resulting pattern is
In Youngs double-slit experiment, the angular width of a fringe formed on a distant screen is 1 degree. The wavelength of light used is 6000 Armstrong. What is the spacing between the slits?
- 40∘
- 50∘
- 60∘
- 90∘
In Young double slit experiment if the maximum intensity of light is Imax then the intensity at path difference λ2
will be)
- Imax
- Imax2
- Imax4
- zero
- 3 : 1
- 1 : 3
- 1 : 4
- 4 :1
Two coherent monochromatic beams of intensities and respectively are superposed. The maximum and minimum intensities in the resulting pattern are:
In Young double slit experiment if the maximum intensity of light is Imax then the intensity at path difference λ2
will be)
- Imax
- Imax2
- Imax4
- zero
- v21−v22=2hm(f1−f2)
- v1−v2=(2hm(f1−f2))12
- v1+v2=(2hm(f1+f2))12
- v21+v22=2hm(f1+f2)
- 0.6 mm
- 0.3 mm
- 0.15 mm
- 2.4 mm
A ray of light of intensity I is incident on a parallel glass-slab at a point A as shown in fig. It undergoes partial reflection and refraction. At each reflection 25% of incident energy is reflected. The rays AB and A'B' undergo interference. The ratio is
[IIT 1990]
4 : 1
8 : 1
7 : 1
49 : 1
- 0.5×108 m/s
- 0.25×108 m/s
- 0.75×108 m/s
- 1×108 m/s
- 49 :1
- 1 : 49
- 1 : 7
- 7: 1
Two audio speakers are kept some distance apart and are driven by the same amplifier system. A person is sitting at a place 6.0 m from one of the speakers and 6.4 m from the other. If the sound signal is continuously varied from 500 Hz to 5000 Hz, what are the frequencies for which there is a destructive interference at the place of the listener? Speed of sound in air = 320 ms.
1.2, 2, 2.8, 3.6, 4.4 KHz
1.2, 3.6 KHz
1.2, 2.4, 3.6, 4.8 KHz
None of these
- 49 :1
- 1 : 49
- 1 : 7
- 7: 1
- 0.25×108 m/s
- 0.75×108 m/s
- 1×108 m/s
- 0.5×108 m/s
- 4 : 1
- 2 : 1
- 3 : 1
- 9 : 1
Figure here shows P and Q as two equally intense coherent sources emitting radiations of wavelength 20 m. The separation PQ is 5.0 m and phase of P is ahead of the phase of Q by 90∘. A, B and C are three distant points of observation equidistant from the midpoint of PQ. The intensity of radiations at A, B, C will bear the ratio
[NSEP 1994]
0 : 1 : 4
4 : 1 : 0
0 : 1 : 2
2 : 1 : 0
- 3I
- 4I
- 10I
- 82I