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The absorption of ink by blotting paper involves

  • capillary action phenomenon
  • viscosity of ink
  • siphon action
  • diffusion of ink through the blotting

Answer: Option A

Similar Questions :

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

  • True
  • False

Answer: Option A

2. Solar cell converts

  • Sound energy into electrical energy
  • Electrical energy into mechanical energy
  • Solar energy into electrical energy
  • Electrical energy into light energy

Answer: Option C

3. Which law is also called law of inertia ?

  • Newton first law
  • Newton second law
  • Newton third law
  • All of above

Answer: Option A

4. 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

5. What is the relation between wavelength, frequency and velocity ?

  • velocity of wave = frequency * wavelength
  • velocity of wave = frequency/wavelength
  • velocity of wave = wavelength/frequency
  • None of above

Answer: Option A

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