Class XI

20 m/s is the same as:
  1. 0.02 km/s
  2. 2000 mm/s
  3. 0.002 mm/s
  4. 200 cm/s
Significant figures are
  1. digits before the decimal point
  2. digits after the decimal point
  3. first three digits after the decimal point
  4. meaningful digits which are known with certainty
20 grams is the same as:
  1. 200 mg
  2. 1500 mg
  3. 2000 mg
  4. 20000 mg
Fill up the blank with suitable word in the statement, " Physical properties are those properties which are measured or observed--------------- changing the identity or the composition of the substance ."
  1. with
  2. without
  3. after
  4. by
There are ___ L in 12.0 ml?
  1. 0.10 L
  2. 0.12 L
  3. 0.012 L
  4. 0.0012 L
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