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Which instrument is used to measure depth of ocean ?

  • Galvanometer
  • Fluxmeter
  • Endoscope
  • Fathometer

Answer: Option D

Explanation:

Galvanometer - measures electric current,
Fluxmeter - measures magnetic flux,
Endoscope - used to examine internal parts of the body.

Similar Questions :

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

  • True
  • False

Answer: Option A

2. 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

3. 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.

4. Electric Motor converts

  • Electrical energy into mechanical energy
  • Mechanical energy into Electrical energy
  • Electrical energy into light energy
  • None of above

Answer: Option A

5. 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

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