Selected MCQ

Current Question
The magnetic field inside an ideal long solenoid is approximately:
  • A. Zero everywhere
  • B. Uniform and parallel to the axis
  • C. Radial and nonuniform
  • D. Circular around the axis inside the coil
Correct Answer: B
Explanation:
For an ideal long solenoid, the field is nearly uniform along its axis.
Related Question 1
Which state of matter has long-range order but flows?
  • A. Solid
  • B. Liquid crystal
  • C. Gas
  • D. Plasma
Correct Answer: B
Explanation:
Liquid crystals combine order and fluidity.
Related Question 2
Which wave is longitudinal?
  • A. Light
  • B. Sound
  • C. X-ray
  • D. Gamma
Correct Answer: B
Explanation:
Sound waves are longitudinal.
Related Question 3
Which biomolecule stores energy long term?
  • A. Protein
  • B. Lipid
  • C. Carbohydrate
  • D. Nucleic acid
Correct Answer: B
Explanation:
Lipids store long-term energy.
Related Question 4
Which complex exhibits highest crystal field splitting?
  • A. Tetrahedral
  • B. Octahedral
  • C. Square planar
  • D. Linear
Correct Answer: C
Explanation:
Square planar has largest splitting in many cases.
Related Question 5
In quantum field theory, virtual particles arise due to:
  • A. Violation of conservation laws
  • B. Heisenberg uncertainty principle
  • C. Thermal fluctuations only
  • D. Classical mechanics
Correct Answer: B
Explanation:
Energy-time uncertainty allows temporary particle-antiparticle fluctuations.