Class X

An iron wire resists 850 Ω at ice point and 860 Ω at steam point, and resistance of wire is 853 Ω room temperature would be
  1. 10 °C
  2. 20 °C
  3. 30 °C
  4. 40 °C
To convert density of kg m-3 into g cm-3, we divide quantities with
  1. 100
  2. 10
  3. 400
  4. 1000
 Thermocouple thermometer is
  1. less responsive
  2. Very responsive
  3. least responsive thermometer
  4. Unresponsive thermometer
Adding of two vectors to get a single vector is termed as
  1. Final vector
  2. Resultant vector
  3. Dominant vector
  4. Recessive vector
 A pendulum bob moves at a speed of 2 m s-1 and mass of 0.5 kg, its Ek would be
  1. 1 J
  2. 0.25 J
  3. 0.5 J
  4. 2 J
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