Waves - Online Test
Q1. A tuning fork of frequency 500 Hz is sounded on a resonance tube. The first & second resonances are obtained at 17 cm and 52 cm. The velocity of sound in m/s is
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. A whistling engine is approaching a stationary observer with velocity 110m/s. The velocity of sound is 330 m/s. The ratio of frequencies as heard by observer at the time of approaching and passing of engine is
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. When a wave undergoes reflection at rarer medium then it undergoes a phase difference of
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. The frequency of the third harmonic of a closed organ pipe is equal to which of the overtones?
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. A stretched string fixed at both ends has n nodes then the length of string in terms of wavelength is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. Two waves of wavelength 1m & 1.01 m produce 10 beats in 3 sec. The velocity of sound in a gas is about
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. Wavelength of the wave is the distance between two particles of the medium having a phase difference of
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. Longitudinal waves cannot be propagated through
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. Longitudinal waves cannot be propagated through
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. When a wave is reflected from a rigid surface, it undergoes a phase change given by
Answer : Option D
Explaination / Solution:
No Explaination.
