Question no. 7,8,9
Q7. The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are
[ AIPMT (Prelims) -2012]
(1) kg s
–1 (2) kg s
(3) kg ms
–1 (4) kgm s
–2
Q8. The dimensions of
are
(1) [ L
–1/2 T
1/2] (2) [L
1/2 T
–1/2]
(3) [ L
–1 T] (4) [ L T
–1]
Q9. The density of a material in CGS system of units is 4 g/cm
3. In a system of units in which unit of length is 10 cm and unit of mass is 100 g, the value of density of material will be
[ AIPMT (Mains) - 2011]