Engineering & Architecture Admissions

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Q. A simple harmonic oscillator has a total energy of 50 J. If the amplitude is doubled, what will be the new total energy?
  • A. 50 J
  • B. 100 J
  • C. 200 J
  • D. 400 J
Q. A simple harmonic oscillator has an amplitude A and a maximum speed v_max. What is the relationship between v_max and A?
  • A. v_max = Aω
  • B. v_max = A/ω
  • C. v_max = A²ω
  • D. v_max = A/2ω
Q. A simple harmonic oscillator has an amplitude A. What is the maximum speed of the oscillator?
  • A.
  • B. A/ω
  • C. A²ω
  • D. A/2ω
Q. A simple harmonic oscillator has an amplitude of 5 cm. What is the maximum displacement from the mean position?
  • A. 0 cm
  • B. 2.5 cm
  • C. 5 cm
  • D. 10 cm
Q. A small insect can walk on the surface of water due to which of the following phenomena?
  • A. Viscosity
  • B. Surface tension
  • C. Capillarity
  • D. Buoyancy
Q. A small insect can walk on the surface of water due to which property?
  • A. Viscosity
  • B. Surface tension
  • C. Capillarity
  • D. Density
Q. A small insect can walk on the surface of water without sinking. This is primarily due to:
  • A. Buoyancy
  • B. Surface tension
  • C. Viscosity
  • D. Density
Q. A soap bubble has a radius of 0.1 m. What is the surface area of the bubble?
  • A. 0.04 m²
  • B. 0.12 m²
  • C. 0.25 m²
  • D. 0.31 m²
Q. A soap bubble has a radius of 5 cm. What is the surface area of the bubble?
  • A. 100π cm²
  • B. 50π cm²
  • C. 25π cm²
  • D. 20π cm²
Q. A soap solution is added to water. What happens to the surface tension?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. A soap solution is added to water. What is the effect on the surface tension?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes negative
Q. A solenoid has a length of 1 m and a cross-sectional area of 0.01 m². If the magnetic field inside it is 0.4 T, what is the magnetic flux?
  • A. 0.004 Wb
  • B. 0.04 Wb
  • C. 0.4 Wb
  • D. 0.1 Wb
Q. A solenoid has a length of 1 m and a cross-sectional area of 0.01 m². If the magnetic field inside it is 0.2 T, what is the magnetic flux?
  • A. 0.002 Wb
  • B. 0.01 Wb
  • C. 0.02 Wb
  • D. 0.1 Wb
Q. A solenoid of length L and cross-sectional area A carries a current I. What is the magnetic field inside the solenoid?
  • A. μ₀nI
  • B. μ₀I/n
  • C. μ₀I/(nA)
  • D. μ₀I/(2n)
Q. A solenoid produces a magnetic field when an electric current passes through it. What happens to the magnetic field if the current is reversed?
  • A. The magnetic field disappears
  • B. The magnetic field direction reverses
  • C. The magnetic field strength increases
  • D. The magnetic field strength decreases
Q. A solenoid produces a uniform magnetic field inside it. What factors affect the strength of this magnetic field?
  • A. Length of the solenoid
  • B. Number of turns per unit length
  • C. Current through the solenoid
  • D. All of the above
Q. A solenoid produces a uniform magnetic field inside it. What happens to the magnetic field strength if the current through the solenoid is doubled?
  • A. It remains the same
  • B. It doubles
  • C. It quadruples
  • D. It halves
Q. A solenoid with a length of 1 m and a cross-sectional area of 0.01 m² carries a current of 5 A. If the magnetic field inside the solenoid is uniform, what is the magnetic field strength?
  • A. 0.1 T
  • B. 0.2 T
  • C. 0.5 T
  • D. 1 T
Q. A solid cone rolls down a slope. If its height is h, what is the speed of the cone at the bottom?
  • A. √(gh)
  • B. √(2gh)
  • C. √(3gh)
  • D. √(4gh)
Q. A solid cone rolls down an incline. If its height is h, what is the relationship between its potential energy and kinetic energy at the bottom?
  • A. PE = KE
  • B. PE = 2KE
  • C. PE = 3KE
  • D. PE = 4KE
Q. A solid cone rolls down an incline. What is the moment of inertia about its axis?
  • A. (3/10)mR^2
  • B. (1/10)mR^2
  • C. (1/3)mR^2
  • D. (2/5)mR^2
Q. A solid cylinder and a hollow cylinder of the same mass and radius are released from rest at the same height. Which one will have a greater speed at the bottom?
  • A. Solid cylinder
  • B. Hollow cylinder
  • C. Both have the same speed
  • D. Depends on the mass
Q. A solid cylinder and a hollow cylinder of the same mass and radius roll down the same incline. Which one reaches the bottom first?
  • A. Solid cylinder
  • B. Hollow cylinder
  • C. Both reach at the same time
  • D. Depends on the angle of incline
Q. A solid cylinder of mass M and radius R rolls down an incline of height h. What is its speed at the bottom of the incline?
  • A. √(2gh)
  • B. √(gh)
  • C. √(4gh)
  • D. √(3gh)
Q. A solid cylinder of radius R rolls down a frictionless incline. What is the ratio of its translational kinetic energy to its total kinetic energy at the bottom?
  • A. 1:1
  • B. 2:1
  • C. 1:2
  • D. 3:1
Q. A solid cylinder rolls down an incline of angle θ. What is the ratio of translational kinetic energy to total kinetic energy at the bottom?
  • A. 1/3
  • B. 2/5
  • C. 1/2
  • D. 3/5
Q. A solid cylinder rolls down an incline of height h. What fraction of its total mechanical energy is kinetic energy at the bottom?
  • A. 1/3
  • B. 1/2
  • C. 2/3
  • D. 1
Q. A solid cylinder rolls down an incline of height h. What is the speed of the center of mass at the bottom of the incline?
  • A. √(2gh)
  • B. √(3gh/2)
  • C. √(4gh/3)
  • D. √(5gh/4)
Q. A solid sphere and a hollow sphere of the same mass and radius are released from rest at the same height. Which one will have a greater linear speed when they reach the ground?
  • A. Solid sphere
  • B. Hollow sphere
  • C. Both have the same speed
  • D. Depends on the mass
Q. A solid sphere and a hollow sphere of the same mass and radius are released from rest at the same height. Which one reaches the bottom first?
  • A. Solid sphere
  • B. Hollow sphere
  • C. Both reach at the same time
  • D. Depends on the surface
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