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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

Similar Questions :

1. What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it ?

  • Elasticity
  • Strain
  • Elastic Limit
  • Stress

Answer: Option C

2. What is the range of mercury thermometer ?

  • 0 degree Celsius to 350 degree Celsius
  • -10 degree Celsius to 350 degree Celsius
  • -20 degree Celsius to 350 degree Celsius
  • -30 degree Celsius to 350 degree Celsius

Answer: Option D

3. Force of attraction between the molecules of different substances is called

  • Surface tension
  • Cohensive force
  • Adhesive force
  • None of above

Answer: Option C

Explanation:

Cohensive force - Force of attraction between the molecules of same substance is called Cohensive force.

4. Which instrument is used to measure the power of electric circuit ?

  • Voltmeter
  • Wattmeter
  • Wavemeter
  • Viscometer

Answer: Option B

Explanation:

Voltmeter - is used to measure electric potential difference between two points,
Wavemeter - is used to measure the wavelength of a radiowave,
Viscometer - is used measure viscosity of liquid.

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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