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Which instrument is used to measure curvature of spherical objects ?

  • Spectroscope
  • Spherometer
  • Spectrometer
  • Sextant
Similar Questions :

1. Radiocarbon is produced in the atmosphere as a result of

  • collision between fast neutrons and nitrogen nuclei present in the atmosphere
  • action of ultraviolet light from the sun on atmospheric oxygen
  • action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
  • lightning discharge in atmosphere

2. What is refractive index ?

  • it is defined as the ratio of speed of light in the medium to the speed of light in vacuum.
  • it is defined as the ratio of speed of light in vacuum to the speed of light in the medium .
  • it is defined as the product of speed of light in medium and in vacuum.
  • None of above

3. 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

4. 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

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

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