wave_mechanics organ_pipe_vibration_of_air_column Question 41
Question: On producing the waves of frequency 1000 Hz in a Kundt’s tube, the total distance between 6 successive nodes is 85 cm. Speed of sound in the gas filled in the tube is
[AFMC 1999]
Options:
A) 330 m/s
B) 340 m/s
C) 350 m/s
D) 300 m/s
Show Answer
Answer:
Correct Answer: B
Solution:
Distance between six successive node $ =\frac{5\lambda }{2}=85cm $
Therefore $ \lambda =\frac{2\times 85}{5}=34cm=0.34m $
Therefore speed of sound in gas $ =n\lambda =1000\times 0.34=340m/s $
BETA
