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General Knowledge on Physics

(Click on suggested Options to select the answer | Color Red means : Wrong & Green Means: Correct)
41. Why is the machine function well with lubricant?
  • A. Because of surface tension of the lubricant
  • B. Because of viscosity of the lubricant
  • C. Lubricant removes moisture
  • D. Lubricant induces inertia of machine
  • Check Answer | Discussion
42. A body lying at rest suddenly breaks into two parts of equal masses which start moving . The two parts will move in
  • A. opposite direction with equal speed
  • B. same direction with equal speed
  • C. any direction with unequal speed
  • D. opposite direction with unequal speed
  • Check Answer | Discussion
43. A swinging pendulum has its maximum acceleration at
  • A. the bottom of the swing
  • B. the two extremities of the swing
  • C. every point on the swing
  • D. no particular portion of the pendulum
  • Check Answer | Discussion
44. A person standing 1 m in front of a plane mirror approaches the mirror by 40 cm. The new distance between the person and his image in the plane mirror is
45. The phenomenon of electromagnetic induction implies a production of induced
  • A. resistance in a coil when the magnetic field changes with time.
  • B. current in a coil when an electric field changes with time
  • C. current in a coil when a magnetic field changes with time .
  • D. voltage in a coil when a electric field with time.
  • Check Answer | Discussion
46. The Dynamo converts
  • A. mechanical energy into electrical enery
  • B. electrical energy into mechanical energy
  • C. mechanical energy into magnetic
  • D. None of the above
  • Check Answer | Discussion
47. Heavy metals got their names because compared to other atoms they have
48. The celsius temperature is a/an
49. Gravitational force share a common feature with electromagnetic force. in both cases, the force is
50. Which one of the following forces lead to separation of the cream from the churned milk?

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