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When a body is immersed partly or wholly in a liquid, there is an apparent loss in weight of the body which is equal to the weight of liquid displaced by the body.

  • True
  • False

Answer: Option A

Explanation:

TRUE, it is Archimedes Principle.

Similar Questions :

1. K. Macmillan invented

  • Bicycle
  • Barometer
  • Calculating Machine
  • Centigrade Scale

Answer: Option A

Explanation:

K. Macmillan of Scotland invented Bicycle in 1839.

Barometer was invented by E. Torricelli of Italy in 1644.

Calculating Machine was invented by Pascal of France in 1642.

Centigrade Scale was invented by A. Celsius of France in 1742.

2. What are audible sound waves ?

  • Having frequency less than 20 Hz
  • Having frequency between 20 Hz to 20000 Hz
  • Having frequency more than 20000 Hz
  • None of above

Answer: Option B

3. Radian is used to measure

  • Temperature
  • Intensity of Flame
  • Angle
  • Solid Angle

Answer: Option C

Explanation:

Kelvin is used to measure Temperature,

Candela is used to measure Intensity of flame,

Steredian is used to measure Solid Angle.

4. What is newton third law of motion ?

  • Every body maintains its initial state rest or motion unless no external force is applied.
  • The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.
  • To every action there is equal and opposite reaction.
  • None of above.

Answer: Option C

Explanation:

Newton First Law of Motion : Every body maintains its initial state rest or motion unless no external force is applied.

Newton Second Law of Motion : The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.

5. The angle of reflection is equal to the angle of incidence.

  • True
  • False

Answer: Option A

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