⇦ | ⇨ |
In Young’s experiment, the ratio of maximum to minimum intensities of the fringe system is 4:1. The amplitudes of the coherent sources are in the ratio
Options
(a) (4:1)
(b) (3:1)
(c) (2:1)
(d) (1:1)
Correct Answer:
(3:1)
Explanation:
I(max) / I(min) = (ɑ₁ + ɑ₂)² / (ɑ₁ – ɑ₂)²
⇒ 4 / 1 = (ɑ₁ + ɑ₂)² / (ɑ₁ – ɑ₂)²
⇒ (ɑ₁ + ɑ₂) / (ɑ₁ – ɑ₂) = 2 / 1
⇒ ɑ₁ + ɑ₂ = 2 (ɑ₁ – ɑ₂)
⇒ 3ɑ₂ = ɑ₁
⇒ ɑ₁ / ɑ₂ = 3 / 1 = 3 : 1
Related Questions: - In common base circuit of a transistor, current amplification factor is 0.95.
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current
- The innermost orbit of hydrogen atom has a diameter 1.06Å. The diameter of tenth
- Two resistors of resistances 2Ω and 6Ω are connected in parallel.
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In common base circuit of a transistor, current amplification factor is 0.95.
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current
- The innermost orbit of hydrogen atom has a diameter 1.06Å. The diameter of tenth
- Two resistors of resistances 2Ω and 6Ω are connected in parallel.
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply