Quiz for Waves and Oscillations

Q1: Which of the following is a characteristic of transverse waves?

A. Particles vibrate parallel to wave direction B. Particles vibrate perpendicular to wave direction C. Waves cannot propagate in vacuum D. Only observed in solids

Q2: The speed of a wave in a string is given by?

A. v = √(T/μ) B. v = T/μ C. v = μ/T D. v = Tμ

Q3: Which quantity remains constant in all types of waves?

A. Speed B. Wavelength C. Frequency D. Amplitude

Q4: In a stationary wave, nodes are the points where:

A. Amplitude is maximum B. Amplitude is zero C. Phase is variable D. Velocity is maximum

Q5: A wave has frequency 50 Hz and wavelength 2 m. What is its speed?

A. 25 m/s B. 50 m/s C. 100 m/s D. 150 m/s

Q6: The phase difference between two points separated by one wavelength is:

A. π B. 2π C. π/2 D. 0

Q7: Which wave parameter is not affected when a wave enters a new medium?

A. Wavelength B. Speed C. Frequency D. Amplitude

Q8: For a wave, if the amplitude doubles, the energy becomes:

A. Same B. Double C. Quadruple D. Half

Q9: Sound waves in air are:

A. Transverse B. Electromagnetic C. Longitudinal D. Torsional

Q10: The distance between two consecutive nodes is:

A. λ B. λ/2 C. 2λ D. λ/4

Q11: Doppler effect explains:

A. Change in frequency due to source or observer motion B. Wave reflection C. Wave refraction D. Change in amplitude

Q12: In resonance, which condition must be met?

A. Forces must be unequal B. Damping must be zero C. Frequency of driving force equals natural frequency D. Frequency must be zero

Q13: Which factor does not affect the speed of sound?

A. Temperature B. Pressure (at constant temperature) C. Medium D. Frequency

Q14: The fundamental frequency of an open organ pipe is:

A. v/2L B. v/L C. v/4L D. 2v/L

Q15: Which wave phenomenon occurs when two waves overlap?

A. Diffraction B. Reflection C. Interference D. Refraction

Q16: If a wave has frequency f and period T, then:

A. f = 1/T B. f = T² C. f = T D. f = √T

Q17: A wave equation is y = A sin(kx - ωt), then k is:

A. Amplitude B. Angular frequency C. Wave number D. Phase

Q18: When sound reflects off a wall, it can form:

A. Shock wave B. Tsunami C. Standing wave D. Longitudinal wave

Q19: A tuning fork resonates with a closed pipe when:

A. Pipe length = λ/2 B. Pipe length = λ C. Pipe length = λ/4 D. Pipe length = 3λ

Q20: The speed of a wave in a medium depends on:

A. Amplitude B. Frequency C. Nature of medium D. Phase