Q. A tuning fork vibrates at a frequency of 440 Hz. What is the time period of the tuning fork? (2020)
  • A. 0.00227 s
  • B. 0.0045 s
  • C. 0.01 s
  • D. 0.005 s
Q. A uniform rod of length L and mass M is pivoted at one end and allowed to fall under gravity. What is the angular acceleration of the rod just after it is released? (2019)
  • A. g/L
  • B. 2g/L
  • C. 3g/L
  • D. g/2L
Q. A uniform rod of length L and mass M is pivoted at one end and released from rest. What is the angular speed of the rod just before it hits the ground? (2019)
  • A. √(3g/L)
  • B. √(2g/L)
  • C. √(g/L)
  • D. √(4g/L)
Q. A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave? (2021)
  • A. 25 m/s
  • B. 50 m/s
  • C. 100 m/s
  • D. 200 m/s
Q. A wave has a frequency of 500 Hz and a wavelength of 0.5 m. What is the speed of the wave? (2023)
  • A. 250 m/s
  • B. 500 m/s
  • C. 1000 m/s
  • D. 2000 m/s
Q. A wave has a frequency of 500 Hz and a wavelength of 0.68 m. What is the speed of the wave? (2021)
  • A. 340 m/s
  • B. 500 m/s
  • C. 680 m/s
  • D. 250 m/s
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 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 wire of length L and diameter d is stretched by a force F. If the diameter is halved while keeping the length constant, what happens to the stress in the wire? (2022)
  • A. It doubles
  • B. It quadruples
  • C. It remains the same
  • D. It halves
Q. A wire of length L and diameter d is stretched by a force F. If the diameter is halved, what will be the new elongation for the same force? (2020)
  • A. It will double
  • B. It will quadruple
  • C. It will remain the same
  • D. It will halve
Q. A wire of length L and diameter d is stretched by a force F. If the diameter is halved while keeping the length constant, what happens to the stress? (2020)
  • A. It doubles
  • B. It quadruples
  • C. It halves
  • D. It remains the same
Q. A wire of length L and diameter d is stretched by a force F. What is the expression for the elongation of the wire? (2020)
  • A. (F * L) / (A * Y)
  • B. (F * Y) / (A * L)
  • C. (Y * A) / (F * L)
  • D. (L * d) / (F * Y)
Q. According to Bernoulli's equation, an increase in the speed of a fluid occurs simultaneously with a: (2020)
  • A. Increase in pressure
  • B. Decrease in pressure
  • C. Increase in temperature
  • D. Decrease in density
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in:
  • A. Pressure
  • B. Temperature
  • C. Density
  • D. Viscosity
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in which of the following? (2019)
  • A. Pressure
  • B. Density
  • C. Viscosity
  • D. Temperature
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a: (2020)
  • A. Increase in pressure
  • B. Decrease in pressure
  • C. Increase in temperature
  • D. Decrease in density
Q. According to Bernoulli's principle, what happens to the pressure of a fluid when its velocity increases?
  • A. Pressure increases
  • B. Pressure decreases
  • C. Pressure remains constant
  • D. Pressure fluctuates
Q. An object is at rest on a frictionless surface. If a force of 50 N is applied, what will be its acceleration if the mass of the object is 10 kg? (2022)
  • A. 2 m/s²
  • B. 5 m/s²
  • C. 10 m/s²
  • D. 20 m/s²
Q. An object is dropped from a height of 20 m. What is its potential energy at the top? (2021)
  • A. 200 J
  • B. 400 J
  • C. 600 J
  • D. 800 J
Q. An object is in equilibrium under the action of three forces: 10 N, 15 N, and 20 N. What is the resultant force acting on the object? (2019)
  • A. 0 N
  • B. 5 N
  • C. 10 N
  • D. 15 N
Q. An object moves with a uniform speed of 5 m/s. How far will it travel in 20 seconds? (2023)
  • A. 50 m
  • B. 75 m
  • C. 100 m
  • D. 125 m
Q. An object of mass 8 kg is acted upon by a net force of 32 N. What is the acceleration of the object? (2019)
  • A. 2 m/s²
  • B. 3 m/s²
  • C. 4 m/s²
  • D. 5 m/s²
Q. An object of mass 8 kg is moving with a velocity of 5 m/s. What is its momentum? (2020)
  • A. 20 kg·m/s
  • B. 30 kg·m/s
  • C. 40 kg·m/s
  • D. 50 kg·m/s
Q. Faraday's law of electromagnetic induction states that the induced EMF in a circuit is proportional to what? (2019)
  • A. Rate of change of current
  • B. Rate of change of magnetic flux
  • C. Rate of change of resistance
  • D. Rate of change of voltage
Q. For a convex lens, if the object is at infinity, the image will be formed at: (2020)
  • A. At the focus
  • B. At the center of curvature
  • C. At infinity
  • D. At the optical center
Q. For a convex lens, if the object is at the focus, what type of image is formed? (2020)
  • A. Real and inverted
  • B. Virtual and erect
  • C. No image
  • D. Real and erect
Q. If a 1000 kg car is moving at a speed of 36 km/h, what is its kinetic energy? (2021)
  • A. 500 J
  • B. 1000 J
  • C. 2000 J
  • D. 3000 J
Q. If a 10Ω resistor carries a current of 2A, what is the voltage across the resistor? (2023)
  • A. 5V
  • B. 10V
  • C. 20V
  • D. 30V
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