1.The bulk modulus of a spherical object is ‘B’. If it is subjected to uniform
pressure ‘P’, the fractional decrease in radius is
A. B/3P
B. 3P/B
C. P/3B
D.P/B
Ans:3
Which one of the following antibiotics kills bacterial cells by inhibiting the polymerization of peptidoglycan? 1)aminoglycosides
2)fluoroquinolones
3)quinines
4)penicillins