Undergraduate

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Q. A cylindrical can is to be made with a fixed volume of 1000 cm³. What dimensions minimize the surface area? (2022)
  • A. 10 cm height, 10 cm radius
  • B. 5 cm height, 15.87 cm radius
  • C. 8 cm height, 12.5 cm radius
  • D. 12 cm height, 8.33 cm radius
Q. A cylindrical can is to be made with a fixed volume of 1000 cm³. What dimensions minimize the surface area? (2022) 2022
  • A. 10, 10
  • B. 5, 20
  • C. 8, 15
  • D. 6, 18
Q. A cylindrical can is to be made with a volume of 1000 cm³. What dimensions minimize the surface area? (2021)
  • A. 10, 10
  • B. 5, 20
  • C. 8, 15
  • D. 6, 18
Q. A dipole consists of two equal and opposite charges separated by a distance 'd'. What is the dipole moment? (2023)
  • A. qd
  • B. q/d
  • C. q^2d
  • D. qd^2
Q. A dipole is placed in a uniform electric field. What is the torque experienced by the dipole? (2023)
  • A. pE
  • B. pE sin(θ)
  • C. pE cos(θ)
  • D. Zero
Q. A disc of radius R and mass M is rotating about its axis with an angular velocity ω. What is its rotational kinetic energy? (2020)
  • A. (1/2)Iω²
  • B. (1/2)Mω²
  • C.
  • D. Mω²
Q. A disc of radius R and mass M is rotating about its axis with an angular velocity ω. What is the moment of inertia of the disc? (2020)
  • A. (1/2)MR²
  • B. (1/3)MR²
  • C. MR²
  • D. (1/4)MR²
Q. A disc of radius R and mass M is rotating about its axis with an angular velocity ω. What is its angular momentum? (2020)
  • A.
  • B. MωR²
  • C. 0.5MR²ω
  • D. MR²ω
Q. A disk and a ring of the same mass and radius are rolling down the same incline. Which one has a greater acceleration? (2019)
  • A. Disk
  • B. Ring
  • C. Both have the same acceleration
  • D. It depends on the mass
Q. A diverging lens has a focal length of -15 cm. What is the nature of the image formed when an object is placed at 10 cm from the lens? (2023)
  • A. Real and inverted
  • B. Virtual and upright
  • C. Real and upright
  • D. Virtual and inverted
Q. A farmer wants to fence a rectangular area of 200 m^2. What dimensions will minimize the fencing required? (2021)
  • A. 10, 20
  • B. 14, 14.28
  • C. 15, 13.33
  • D. 20, 10
Q. A farmer wants to fence a rectangular field with 100 m of fencing. What dimensions will maximize the area? (2022)
  • A. 25 m by 25 m
  • B. 30 m by 20 m
  • C. 40 m by 10 m
  • D. 50 m by 0 m
Q. A flywheel has a moment of inertia I and is rotating with an angular velocity ω. If a torque τ is applied, what is the angular acceleration? (2021)
  • A. τ/I
  • B. I/τ
  • C. ω/τ
  • D.
Q. A flywheel is a device used to store rotational energy. If the moment of inertia of the flywheel is I and it rotates with an angular velocity ω, what is its rotational kinetic energy? (2020)
  • A. (1/2)Iω^2
  • B. (1/4)Iω^2
  • C. (1/3)Iω^2
  • D. (1/5)Iω^2
Q. A flywheel is rotating with an angular speed of 10 rad/s. If it is brought to rest in 5 seconds, what is the angular deceleration? (2020)
  • A. 2 rad/s²
  • B. 5 rad/s²
  • C. 10 rad/s²
  • D. 20 rad/s²
Q. A flywheel is rotating with an angular speed of 30 rad/s. If it comes to rest in 10 seconds, what is the angular deceleration? (2020)
  • A. 3 rad/s²
  • B. 6 rad/s²
  • C. 2 rad/s²
  • D. 1 rad/s²
Q. A flywheel is rotating with an angular velocity of 10 rad/s. If it is brought to rest in 5 seconds, what is the angular deceleration? (2020)
  • A. 2 rad/s²
  • B. 5 rad/s²
  • C. 10 rad/s²
  • D. 20 rad/s²
Q. A flywheel is rotating with an angular velocity of 10 rad/s. If the moment of inertia of the flywheel is 2 kg·m², what is its rotational kinetic energy? (2020)
  • A. 100 J
  • B. 50 J
  • C. 20 J
  • D. 10 J
Q. A force of 10 N is applied to an object, causing it to accelerate at 2 m/s². What is the mass of the object? (2020)
  • A. 5 kg
  • B. 10 kg
  • C. 15 kg
  • D. 20 kg
Q. A force of 10 N is applied to move a box 5 m across a floor. What is the work done on the box?
  • A. 10 J
  • B. 20 J
  • C. 50 J
  • D. 5 J
Q. A force of 10 N is applied to move a box 5 m across a floor. What is the work done by the force?
  • A. 10 J
  • B. 20 J
  • C. 50 J
  • D. 5 J
Q. A force of 10 N is applied to move a box 5 m along a horizontal surface. What is the work done by the force? (2021)
  • A. 20 J
  • B. 50 J
  • C. 10 J
  • D. 5 J
Q. A force of 10 N is applied to move an object 5 m in the direction of the force. What is the work done by the force?
  • A. 10 J
  • B. 20 J
  • C. 50 J
  • D. 5 J
Q. A force of 10 N is applied to move an object 5 m. What is the work done? (2023)
  • A. 50 J
  • B. 10 J
  • C. 5 J
  • D. 20 J
Q. A force of 100 N is applied to a 50 kg object. What is the acceleration of the object? (2022)
  • A. 1 m/s²
  • B. 2 m/s²
  • C. 3 m/s²
  • D. 4 m/s²
Q. A force of 100 N is applied to a 50 kg object. What is the resulting acceleration? (2023)
  • A. 1 m/s²
  • B. 2 m/s²
  • C. 3 m/s²
  • D. 4 m/s²
Q. A force of 15 N is applied to a 3 kg mass. What is the resulting acceleration? (2023)
  • A. 3 m/s²
  • B. 5 m/s²
  • C. 7 m/s²
  • D. 10 m/s²
Q. A force of 20 N is applied at an angle of 60° to the horizontal while moving an object 4 m. What is the work done?
  • A. 40 J
  • B. 80 J
  • C. 20 J
  • D. 60 J
Q. A force of 30 N is applied to a 3 kg object. What is the resulting acceleration? (2020)
  • A. 5 m/s²
  • B. 10 m/s²
  • C. 15 m/s²
  • D. 20 m/s²
Q. A force of 30 N is applied to a 6 kg object. What is the object's acceleration? (2023)
  • A. 3 m/s²
  • B. 4 m/s²
  • C. 5 m/s²
  • D. 6 m/s²
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