EASY
11th ICSE
IMPORTANT
Earn 100

The difference in frequencies between the second overtone of a closed organ pipe and the first overtone of an open organ pipe of same length is 150. What are the fundamental frequencies of the closed and open pipes?

Important Questions on Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns

EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 9
The sum of the frequencies of the first overtone of a closed pipe and the second overtone of an open pipe of the same length is 180 Hz. What are the fundamental frequencies of the closed and open pipes?
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 10
 The fundamental frequency of an open organ pipe is 300 Hz. The frequency of the first overtone of another closed organ pipe is the same as the frequency of the first overtone of open pipe. What are the lengths of the pipes? The speed of sound is 330 ms-1.
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 11
Two open organ pipes of lengths 75 cm and 80 cm are sounded together. How many beats per second will be produced by them? (Speed of sound in air =332 ms-1)
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 12
Two organ pipes closed at one end are of equal diameters but different lengths. They produce 8beats per second when sounded simultaneously. The smaller organ pipe is 16 cm long and the speed of sound in air is 320 ms-1. Find the length of the other pipe.
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 13
Two open organ pipes on sounding simultaneously produce 5 beats/s. If the smaller pipe be 66 cm long, then determine the length of the bigger organ pipe. (The speed of sound in air is 330 m s-1.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 14
Two open organ pipes of lengths 500 cm and 50.6 cm produce 4 beats/s. Calculate the speed of sound in air.
MEDIUM
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 15
A tuning fork of frequency 256 Hz resonates with a closed organ pipe of length 25.4 cm. If the length of the pipe be increased by 2 mm then calculate the number of beats produced per second.
EASY
11th ICSE
IMPORTANT
ISC Physics Class XI Part 1>Chapter 31 - Superposition of Waves-2 : Stationary (Standing) Waves : Vibration of Air Columns>NUMERICALS>Q 16
Two tuning forks A and B when sounded together produce 8 beats per second. A and B are in resonance with closed organ pipes having lengths 32 cm and 33 cm respectively. Determine the frequencies of the tuning forks.