21. The Young’s modulus of a rubber string 8 cm long and density
The Young’s modulus of a rubber string 8 cm long and density 1.5 kg/m3 is 5×108 N/m2 , is suspended on the ceiling in a room. The increase in length due to its own weight will be
Q. In a March Past, seven persons are standing in a row. Q is standing left to R but right to P. 0 is standing right to N and left to P. Similarly, S is standing right to R and …
