Dimensions of a Physical Quantity MCQ

Test your knowledge with important Dimensions of a Physical Quantity MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Dimensions of a Physical Quantity MCQs at Bissoy

• Can the diameter of a thread be measure by using a scale?
  ক

  Yes

  খ

  No
• An instrument cannot be precise without being accurate.
  ক

  False

  খ

  True
• All physical quantities have dimensions.
  ক

  True

  খ

  False
• Which of the following is a systematic error?
  ক

  Constant error

  খ

  Least count error

  গ

  Gross error

  ঘ

  Personal error
• If the unit of force is 1kN, unit of length 1km and the unit of time is 100s, what will be the unit of mass?
  ক

  1000 kg

  খ

  104 kg

  গ

  100 kg

  ঘ

  105 kg
• Which of the following is a dimensional constant?
  ক

  e

  খ

  Area

  গ

  Specific gravity

  ঘ

  Gravitational constant
• What is the dimensional formula for Gravitational constant?
  ক

  ML2 T(-3)

  খ

  ML(-1) T(-2)

  গ

  ML(-1) T(-1)

  ঘ

  M(-1) L3 T(-2)
• How many dimensions of the world are there?
  ক

  7

  খ

  3

  গ

  2

  ঘ

  4
• The average life of an Indian is 56 years. Find the number of times the human heart beats in the life of an Indian, if the heat beats once in 0.8 s.
  ক

  20.4×109 times

  খ

  2.5×109 times

  গ

  2.2×109 times

  ঘ

  6.1×109 times
• Which of the following is used for measuring long time intervals?
  ক

  Electrical oscillators

  খ

  Atomic clocks

  গ

  Decay of elementary particles

  ঘ

  Radioactive dating