11 Questions
In the Doppler effect formula, what does 'u' represent?
Relative speed between source and observer
What is the formula for the fundamental frequency of a stretched string?
f = 1/2l √(T/μ)
Which formula is used to calculate sound intensity in terms of power and area?
I=P/A
What is the relationship between sound intensity and distance from the source?
Sound intensity is inversely proportional to distance squared
What is the formula for calculating the apparent frequency in the Doppler effect?
f' = fc/(c+u)
In the relationship between stationary and travelling waves, what is the internodal distance for a travelling wave?
0.5λ
What does the symbol 'T' represent in the fundamental frequency formula of a stretched string?
Tension
What is the relationship between sound intensity and the distance from the source?
I∝1/r^2
Which parameter does 'A' represent in the equation for sound intensity in terms of power and area?
Area
In the Doppler effect, what happens to the apparent frequency (f') when the relative speed (u) between the source and the observer is moving towards each other increases?
It increases
How does the sound intensity (I) vary with the distance (r) from a point source of sound in free space?
I is inversely proportional to the square of r
Test your knowledge on wave velocity, the Doppler effect, and the relationship between stationary and travelling waves. Topics include calculating wave velocity, determining apparent frequency with the Doppler effect equation, and understanding the fundamental frequency of a stretched string.
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