Major Competitive Exams

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Q. A wave traveling along a string has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave? (2020)
  • A. 25 m/s
  • B. 50 m/s
  • C. 100 m/s
  • D. 75 m/s
Q. A wave traveling along a string is described by the equation y(x, t) = 0.1 sin(2π(0.5x - 2t)). What is the speed of the wave?
  • A. 1 m/s
  • B. 2 m/s
  • C. 3 m/s
  • D. 4 m/s
Q. A wave traveling along a string is described by the equation y(x, t) = 0.1 sin(2π(0.5x - 4t)). What is the wave speed?
  • A. 2 m/s
  • B. 4 m/s
  • C. 8 m/s
  • D. 1 m/s
Q. A wave traveling along a string is described by the equation y(x, t) = A sin(kx - ωt). What does 'k' represent?
  • A. Amplitude
  • B. Wave number
  • C. Frequency
  • D. Angular frequency
Q. A wave traveling along a string is described by the equation y(x, t) = A sin(kx - ωt). What does 'A' represent?
  • A. Wavelength
  • B. Amplitude
  • C. Frequency
  • D. Speed
Q. A wave traveling along a string is described by the equation y(x, t) = A sin(kx - ωt). What does the parameter A represent?
  • A. Wavelength
  • B. Amplitude
  • C. Frequency
  • D. Speed
Q. A wave traveling along a string is described by the equation y(x, t) = A sin(kx - ωt). What is the phase velocity of the wave?
  • A. A/k
  • B. ω/k
  • C. k/ω
  • D.
Q. A wave traveling along a string is described by the equation y(x, t) = A sin(kx - ωt). If A = 2 m, k = 3 rad/m, and ω = 6 rad/s, what is the amplitude of the wave?
  • A. 1 m
  • B. 2 m
  • C. 3 m
  • D. 4 m
Q. A wave travels along a string with a speed of 300 m/s and has a frequency of 150 Hz. What is the wavelength of the wave?
  • A. 1.0 m
  • B. 2.0 m
  • C. 3.0 m
  • D. 4.0 m
Q. A wave travels at a speed of 300 m/s and has a frequency of 150 Hz. What is its wavelength?
  • A. 2 m
  • B. 1.5 m
  • C. 3 m
  • D. 0.5 m
Q. A wave travels in a medium with a speed of 300 m/s and has a frequency of 75 Hz. What is the wavelength? (2021)
  • A. 4 m
  • B. 2 m
  • C. 3 m
  • D. 1 m
Q. A wave travels through a medium with a frequency of 500 Hz and a wavelength of 2 m. What is the speed of the wave?
  • A. 1000 m/s
  • B. 250 m/s
  • C. 500 m/s
  • D. 2000 m/s
Q. A wave travels through a medium with a speed of 300 m/s and has a frequency of 150 Hz. What is its wavelength?
  • A. 1 m
  • B. 2 m
  • C. 3 m
  • D. 4 m
Q. A wave travels through a medium with a speed of 300 m/s and has a frequency of 150 Hz. What is the wavelength of the wave?
  • A. 1 m
  • B. 2 m
  • C. 3 m
  • D. 4 m
Q. A wave travels through a medium with a speed of 300 m/s and has a frequency of 150 Hz. What is the wavelength?
  • A. 1 m
  • B. 2 m
  • C. 3 m
  • D. 4 m
Q. A wave travels through a medium with a speed of 500 m/s and has a wavelength of 2 m. What is its frequency? (2022)
  • A. 250 Hz
  • B. 500 Hz
  • C. 1000 Hz
  • D. 2000 Hz
Q. A wave travels through a medium with a speed of 500 m/s and has a wavelength of 5 m. What is its frequency? (2021)
  • A. 100 Hz
  • B. 50 Hz
  • C. 200 Hz
  • D. 250 Hz
Q. A wave travels with a frequency of 500 Hz and a wavelength of 2 m. What is its speed?
  • A. 250 m/s
  • B. 1000 m/s
  • C. 500 m/s
  • D. 200 m/s
Q. A wave travels with a speed of 300 m/s and has a frequency of 150 Hz. What is its wavelength?
  • A. 1 m
  • B. 2 m
  • C. 3 m
  • D. 4 m
Q. A wave travels with a speed of 300 m/s and has a frequency of 150 Hz. What is the wavelength? (2020)
  • A. 2 m
  • B. 1.5 m
  • C. 3 m
  • D. 0.5 m
Q. A wave travels with a speed of 340 m/s and has a frequency of 170 Hz. What is its wavelength? (2022)
  • A. 2.0 m
  • B. 1.0 m
  • C. 0.5 m
  • D. 3.0 m
Q. A weight is measured as 10 kg with a relative error of 0.1. What is the absolute error?
  • A. 1 kg
  • B. 0.1 kg
  • C. 0.5 kg
  • D. 0.2 kg
Q. A weight is measured to be 50 kg with a possible error of 1 kg. What is the percentage error in the measurement?
  • A. 2%
  • B. 1%
  • C. 0.5%
  • D. 5%
Q. A wheel is rotating with an angular acceleration of 2 rad/s². If it starts from rest, what will be its angular velocity after 5 seconds? (2022)
  • A. 5 rad/s
  • B. 10 rad/s
  • C. 15 rad/s
  • D. 20 rad/s
Q. A wheel is rotating with an angular velocity of 10 rad/s. If it accelerates at 2 rad/s², what will be its angular velocity after 5 seconds? (2023)
  • A. 20 rad/s
  • B. 10 rad/s
  • C. 15 rad/s
  • D. 25 rad/s
Q. A wheel is rotating with an angular velocity of 10 rad/s. If it accelerates at a rate of 2 rad/s², what will be its angular velocity after 5 seconds?
  • A. 20 rad/s
  • B. 10 rad/s
  • C. 30 rad/s
  • D. 0 rad/s
Q. A wheel of radius 0.5 m is rotating with an angular speed of 10 rad/s. What is the linear speed of a point on the edge of the wheel? (2022)
  • A. 5 m/s
  • B. 10 m/s
  • C. 15 m/s
  • D. 20 m/s
Q. A wheel of radius R and mass M is rolling without slipping on a horizontal surface. If it has a linear speed v, what is its total kinetic energy? (2022)
  • A. (1/2)Mv²
  • B. (1/2)Mv² + (1/2)(Iω²)
  • C. (1/2)Mv² + (1/2)(Mv²)
  • D. (1/2)Mv² + (1/2)(Mv²/2)
Q. A wheel of radius R is rolling without slipping on a horizontal surface. If the wheel has an angular velocity ω, what is the linear velocity of the center of the wheel? (2023)
  • A.
  • B. ω/R
  • C. ω
  • D. 2Rω
Q. A wheel of radius R is rolling without slipping on a horizontal surface. What is the relationship between the linear velocity v of the center of the wheel and its angular velocity ω?
  • A. v = Rω
  • B. v = ω/R
  • C. v = 2Rω
  • D. v = ω/2R
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