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Which instrument is used to measure strength of direct current ?

  • Stroboscope
  • Streoscope
  • Tangent Galvanometer
  • Tachometer

Answer: Option C

Explanation:

Stroboscope - is used to view rapidly moving objects,

Streoscope - is used to view two dimensional pictures,

Tachometer - is used to determine rotational speed of a shaft (used in aeroplanes and motor boats).

Similar Questions :

1. All planets move around the sun in elliptical orbits, with the sun being at rest at one focus of the orbit.

  • True
  • False

Answer: Option A

2. Which instrument is used to measure curvature of spherical objects ?

  • Spectroscope
  • Spherometer
  • Spectrometer
  • Sextant

Answer: Option B

Explanation:

Spectroscope - used to record spectra,

Spectrometer - used to measure the position of spectral lines,

Sextant - used to measure the height of very distant objects and also used by navigators to find the latitude. what you thought :)

3. 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.

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. 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

Read more from - Physics Questions Answers
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