Selected MCQ

Current Question
Which law governs blackbody radiation spectrum?
  • A. Newton’s law
  • B. Planck’s law
  • C. Boyle’s law
  • D. Hooke’s law
Correct Answer: B
Explanation:
Planck’s law describes spectral energy distribution.
Related Question 1
For blackbody radiation, Wien’s displacement law relates peak wavelength inversely to:
  • A. Pressure
  • B. Temperature
  • C. Entropy
  • D. Emissivity
Correct Answer: B
Explanation:
The hotter the blackbody, the shorter the wavelength at which it emits most strongly.
Related Question 2
Which equation governs fluid motion?
  • A. Schrödinger
  • B. Navier–Stokes
  • C. Maxwell
  • D. Dirac
Correct Answer: B
Explanation:
Navier–Stokes describes fluid dynamics.
Related Question 3
Which radiation has shortest wavelength?
  • A. Radio
  • B. Microwave
  • C. X-ray
  • D. Gamma ray
Correct Answer: D
Explanation:
Gamma rays have highest frequency and shortest wavelength.
Related Question 4
Which equation governs quantum evolution?
  • A. Newton’s second law
  • B. Schrödinger equation
  • C. Maxwell equation
  • D. Navier-Stokes equation
Correct Answer: B
Explanation:
Schrödinger equation describes time evolution of wavefunction.