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Waves, Sound & Oscillations
NEET Physics • 10 questions • Free on ExamBattle
Practice Questions
Q1
The time period of a simple pendulum of length 1 m is approximately (g = 10 m/s²):
- A. 1 s
- B. 2 s
- C. 0.5 s
- D. 3 s
Q2
A wave has frequency 400 Hz and wavelength 0.85 m. Its speed is:
- A. 170 m/s
- B. 340 m/s
- C. 680 m/s
- D. 85 m/s
Q3
An ambulance siren at 1000 Hz approaches a stationary observer. If the speed of sound is 340 m/s and ambulance speed is 34 m/s, the observed frequency is:
- A. 900 Hz
- B. 1000 Hz
- C. 1100 Hz
- D. 1200 Hz
Q4
In simple harmonic motion, at the equilibrium position the velocity is:
- A. Zero
- B. Maximum
- C. Equal to amplitude
- D. Minimum but non-zero
Q5
The number of beats per second when two tuning forks of 256 Hz and 260 Hz are sounded together is:
- A. 2
- B. 4
- C. 8
- D. 16
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