Hello Students, This video contain solution of objective I of HC verma book of page number 9<br />1. Which of the following sets cannot enter into the list of fundamental quantities in any system of units ? <br />(a) length, mass and velocity, <br />(b) length, time and velocity, <br />(c) mass, time and velocity, <br />(d) length, time and mass. <br /><br />2. 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 <br />units then <br />units then <br /><br />3. Suppose a quantity x can be dimensionally represented in terms of M, L and T, that is, [x] = <br />m a Lb <br />— c. The <br />quantity mass <br />(a) can always be dimensionally represented in terms of L, T and x, <br />(b) can never be dimensoinally represented in terms of L, T and x, <br />(c) may be represented in terms of L, T and x if a = 0, (d) may be represented in terms of L, T and x if a 0. <br /><br />4. A dimensionless quantity <br />(a) never has a unit, (b) always has a unit, <br />(c) may have a unit, (d) does not exist. <br /><br />5. A unitless quantity <br />(a) never has a nonzero dimension, <br />(b) always has a nonzero dimension, <br />(c) may have a nonzero dimension, <br />(d) does not exist.<br /><br /><br />If you have any suggestions,questions then please write in the comment section below..
