A physical quantity is measured and the result
is expressed as nu where u is the unit used
and n is the numerical value. If the result is
expressed in various units then :
(A) n ∝ size of u (B) n ∝ u2
(C) n ∝ u (D) n ∝ u
1

• I would start by stating that for any measurement, the unit value is arbitrary. For instance, you can measure distance in meters, inches, etc., so start with the expression:
  
  nu = mv
  
  where mv is the same measurement in different units. If you consider mv a constant, you can manipulate the above equation to get:
  
  n = (mv)/u
  
  which shows that n is proportional to 1/u.
  
  Basically whenever you take a measurement, that larger the units you use, the smaller the number is going to be. 1 meter is 100 centimeters is 1000 millimeters.
• 6 years agoHelpfull: Yes(0) No(0)