| ⇦ | 
| ⇨ |
Two closed organ pipes when sounded simultaneously give 4 beats/second. If longer pipe has a length of 1m, then length of shorter pipe will be (v=300 m/s)
Options
(a) 185.5 cm
(b) 94.9 cm
(c) 90 cm
(d) 80 cm
Correct Answer:
94.9 cm
Explanation:
n₂ – n₁ = 4, For closed pipe, n = V/4l
(V/4l₂) – (V/4l₁) = 4 ⇒ (V/4l₂) – (V/4×1) = 4
(300/4l₂) – (300/4) = 4 ⇒ 75/l₂ = 4 + 75 ⇒ 75/l₂ = 79
⇒ l₂ = (75/79) met = (75×100)/79 = 94.9 cm.
Related Questions: - As a light wave travels from one medium to another which of its following properties
- The magnifying power of a telescope is 9. When it is adjusted for parallel rays
- The wavelength of first line of Balmer series is 6563Å. The wavelength of first line
- A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- A charged particle (charge q) is moving in a circle of radius R with uniform speed v
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- As a light wave travels from one medium to another which of its following properties
- The magnifying power of a telescope is 9. When it is adjusted for parallel rays
- The wavelength of first line of Balmer series is 6563Å. The wavelength of first line
- A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- A charged particle (charge q) is moving in a circle of radius R with uniform speed v
Topics: Waves (80)
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