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If lift is going up with acceleration, the apparent weight of a body is

  • may be more or less than true weight
  • equal to the true weight
  • less than the true weight
  • more than the true weight

Answer: Option D

Similar Questions :

1. Atmospheric pressure is measured by

  • Tonometer
  • Pyrometer
  • Barometer
  • Thermometer

Answer: Option C

2. 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.

3. What are audible sound waves ?

  • Having frequency less than 20 Hz
  • Having frequency between 20 Hz to 20000 Hz
  • Having frequency more than 20000 Hz
  • None of above

Answer: Option B

4. Radian is used to measure

  • Temperature
  • Intensity of Flame
  • Angle
  • Solid Angle

Answer: Option C

Explanation:

Kelvin is used to measure Temperature,

Candela is used to measure Intensity of flame,

Steredian is used to measure Solid Angle.

5. Which instrument is used to record physical happenings at a distant place ?

  • Thermostat
  • Tonometer
  • Telemeter
  • Transponder

Answer: Option C

Explanation:

Thermostat - is used to regulate the temperature at a particular point.

Tonometer - is used to measure the pitch of a sound,

Transponder - is used to receive a signal and transmit a reply immediately.

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