Dimensional Analysis MCQ

Test your knowledge with important Dimensional Analysis MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Dimensional Analysis MCQs on Bissoy. Bissoy App

• What is the ratio of inertial force to compressibility force and is also the key parameter, characterizing compressibility effects in fluids?
  ক

  Froude number

  খ

  Strouhal number

  গ

  Mach number

  ঘ

  Weber number
• Is Plane angle a derived unit?
  ক

  True

  খ

  False
• In Fluid dynamics, Reynold’s number is a dimensionless number. True or False?
  ক

  False

  খ

  True
• What are the dimensions of Energy?
  ক

  (MLT-2)

  খ

  (M-1L3T-2)

  গ

  (M L2T-2)

  ঘ

  (LT-2)
• State True or False. Statement I: Through dimensional analysis of Physical quantities we can verify whether an equation is correct or not. Statement II: With dimensional analysis we can derive a relation between various physical quantities.
  ক

  True, True

  খ

  False, False

  গ

  True, False

  ঘ

  False, True
• What are the principles for ensuring the consistency of an equation through dimensional analysis? Statement I: The sum of all exponents of any dimension (e.g., mass), should be the same on both sides of the equation. Statement II: An exponent must itself be a pure / dimensionless number. Statements III: The magnitude of the exponent does not necessarily have to be a whole number.
  ক

  I & II

  খ

  II

  গ

  III

  ঘ

  I, II & III
• 2.The occurrence of closeness of measured values towards each other is known as ______
  ক

  Accuracy

  খ

  Precision

  গ

  Measurement

  ঘ

  Dimensional Analysis
• The analytical procedure of studying physical phenomena in variables, and corelating them to obtain a dimensionless group is known as ________
  ক

  Dimensional constants

  খ

  Dimensional homogeneity

  গ

  Dimensional variable

  ঘ

  Dimensional analysis
• What happens when a bullet is fired from a rifle?
  ক

  The rifle becomes weightless

  খ

  We fall back

  গ

  Rifle gives backward kick

  ঘ

  Bullet doesn’t leave the rifle
• When a body is falling freely under gravity, the total mechanical energy remains constant because of which of the following?
  ক

  Law of conservation of energy

  খ

  Unification of force

  গ

  Electromagnetic force

  ঘ

  Gravity
• Gravitational force, despite being a weak force, governs the large scale motion.
  ক

  True

  খ

  False
• Why is climbing a lamp post harder than climbing up a tree?
  ক

  Because of parallel friction force

  খ

  Because of contact force between the bodies

  গ

  Because of Van der Wall’s force

  ঘ

  Because of rope force
• Which of the following is an example of electromagnetic force?
  ক

  Motion of moon around earth

  খ

  Evolution of stars

  গ

  Evolution of galaxies

  ঘ

  Compression of spring
• Gravitational force is the weakest force in nature.
  ক

  True

  খ

  False
• Which is the universal attractive force?
  ক

  Electromagnetic force

  খ

  Strong nuclear force

  গ

  Weak nuclear force

  ঘ

  Gravitational force
• Which of the following uses electromagnetic waves?
  ক

  Radio

  খ

  Radiotherapy

  গ

  Detecting fractures

  ঘ

  Electric motors
• Quantum physics deals with macroscopic phenomena.
  ক

  True

  খ

  False
• What is the science that deals with every substance, its structure, its composition and changes?
  ক

  Botanical science

  খ

  Zoological science

  গ

  Chemistry

  ঘ

  Physics