What is atomic number Z when v=`2500s^(-1)` and value of a=1 amd b=1.

If (z-1)/(z+1) is a purely imaginary number (z ne - 1) , then find the value of |z| .

If (z-1)/(z+1) is a purely imaginary number (z ne - 1) , then find the value of |z| .

Two elements A and B with atomic numbers Z_(A) and Z_(B) are used to produce charateristic X-rays with frequencies v_(A) and v_(B) respectively. If Z_(A):Z_(B)=1:2, then v_(A):v_(B) will be

Two elements A and B with atomic numbers Z_(A) and Z_(B) are used to produce charateristic X-rays with frequencies v_(A) and v_(B) respectively. If Z_(A):Z_(B)=1:2, then v_(A):v_(B) will be

Two elements A and B with atomic numbers Z_(A) and Z_(B) are used to produce characteristic X-rays with frequencies v_(A) and v_(B) respectively. If Z_(A):Z_(B) 1:2, then v_(A) :v_(B) will be

If a,b are positive number and product of ab= 2500.The minimum value of a+b is

If z is a complex number such that z+z^(-1)=1, then what is the value of z^(99)+z^(-99) ?

If four elements with atomic numbers Z-2, Z-1, Z and Z + 1 are forming isoelectronic ions, the atomic number of the ion having largest size is