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If the ratio of amplitude of two superposed waves is 2:1, then the ratio of maximum intensity and minimum intensity is
Options
(a) (9:1)
(b) (1:9)
(c) (4:1)
(d) (1:4)
Correct Answer:
(9:1)
Explanation:
Let ɑ and b the amplitude of wave.
Given: ɑ / b = 2 / 1 (or) ɑ = 2b
I(max) / I(min) = (ɑ + b)² / (ɑ – b)² = 9 / 1
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The ratio of specific heats Cp/Cv=γ in terms of degrees of freedom (n) is given by
- A source of unknown frequency gives 4 beats/s, when sounded with a source harmonic
- Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
- The wavelength of Kα line in copper is 1.5Å. The ionisation energy of K electron in copper is
- A layer of colourless oil spreads on water surface. White light is incident on it
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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