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Which instrument is used to measure changes in volume of substances ?

  • Dyanamo
  • Dilatometer
  • Cyclotron
  • Electroscope

Answer: Option B

Explanation:

Dyanamo - is used to convert mechanical energy into electrical energy,

Cyclotron - is a charged particle accelerator which can accelerate charged particles to high energies,

Electroscope - is used to detect the presence of an electric charge.

Similar Questions :

1. Lognitudinal waves and Transverse waves are types of ?

  • Mechanical waves
  • Non-Mechanical waves
  • Both of above
  • None of Above

Answer: Option A

2. Alfred Nobel invented

  • X ray
  • Diesel Engine
  • Dynamite
  • Dynamo

Answer: Option C

Explanation:

Alfred Nobel if Sweden invented Dynamite in 1867,

X ray was invented by Wilhelm Roentgen of Germany in 1895,

Diesel Engine was invented by Rudolf Diesel of Germany 1892,

Dynamo was invented by Michael Faraday of England in 1831.

3. Scalar Quantities are

  • physical quantities which have magnitude only and no direction
  • physical quantities which have no magnitude only and only direction
  • physical quantities which have magnitude only and direction
  • physical quantities which have no magnitude and no direction

Answer: Option A

4. What is unit of Work and Energy ?

  • Joule
  • kilogram
  • amphere
  • meter

Answer: Option A

5. Which are the primary Colours ?

  • Yellow, Green, Blue
  • Red, Magenta, Blue
  • Red, Green, White
  • Red, Green, Blue

Answer: Option D

Explanation:

Red, Green, Blue are primary colours. All the colours can be produced by them by mixing in different proportions. Interesting :)

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