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If frequency (F), velocity (v) and density (D) are considered as fundamental units the dimensional formula for momentum will be..... |
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Answer» `D^(2)v^(2)F^(2)` `:.P=KF^(a)v^(b)D^(c)` where `K ne 0` dimensionless onstant. `:. A,b ne0 and a,b,c, in R` Comparing both the SIDES `:. M^(1)L^(1)T^(1)=(T^(-1))^(a)(L^(1)T^(-1))^(b)(M^(1)L^(-3))^(c)` `=T^(-a)XXL^(b)xxM^(c)L^(-3c)` `=M^(-c)xxL^(b-3c)T^(-a-b)` `:.` Comparing power of M,L,T `:. 1=c "" :. c=I` `:. 1=b-3c=b-3 "" :.b=4` `:. a=1-b=1-4=-3 "" :.a=-3` `:.` Dimensional formula of momentum in new SYSTEM is `P=K F^(a)v^(b)D^(c)` `K=1, a=-3,b=4,c=1` `:.[P]=F^(-3)v^(4)D^(1)` `:.[P]=D^(1)v^(4)F^(-3)` |
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