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Which instrument is used to measure the scattering of light by particles suspended in a liquid ?

  • Nephetometer
  • Ohmmeter
  • Ondometer
  • Pyrometer

Answer: Option A

Explanation:

Ohmmeter - is used to measure electrical resistance in ohms,

Ondometer - is used to measure frequency of electromagnetic waves,

Pyrometer - is used to measure very high temperature.

Similar Questions :

1. The incident ray, reflected ray and normal to the reflecting surface at the incident point all never lie in same plane.

  • True
  • False

Answer: Option B

2. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this ?

  • Newton first law
  • Newton second law
  • Newton third law
  • Principle of conservation of linear momentum

Answer: Option D

3. 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

4. Orbital speed of a satellite is dependent of its mass.

  • True
  • False

Answer: Option B

Explanation:

Orbital speed of a satellite is independent of its mass.

5. What is Hooke's Law ?

  • Stress is inversely proportional to strain.
  • Stress is directly proportional to strain.
  • Stress and strain are dependent on each other.
  • Stress and strain are independent of each other.

Answer: Option B

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