Let `V_(1)=` variance of `{13, 16, 19…………103} and V_(2)=" variance of "{20, 26, 32…………..200}`. Then `V_(1):V_(2)` is

If the variance of the first 50 odd natural numbers is V_(1) and the variance of next 50 odd natural numbers is V_(2) , then V_(1)+V_(2) is equal to

If three vectors V_(1)=alphai+j+k, V_(2)=i+betaj-2k" and "V_(3)=i+j are coplanar, and V_(1)" and "V_(3) are perpendicular, then the vector V_(1) times V_(2) is:

Find the currents in the Y connection of 3 resistances R_(1) = 10Omega , R_(2)=20Omega and R_(3)= 30 Omega . When the terminals of R_(1) , R_(3) and R_(3) are maintained at potentials V_(1) = 10V, V_(2) =6V and V_(3) = 15V.

In the given circuit V_(0_1) " and " V_(0_2) are -

If the variance of the data 2, 4, 5, 6, 17 is v, then what is the variance of the data 4, 8, 10, 12, 34?

Voltmeters V_(1) and V_(2) are connected in series across a D.C. line V_(1) reads 80 volts and has a per volt resistance of 200 ohms , V_(2) has a total resistance of 32 kilo ohms. The line voltage is

The ratio of de broglie wavelength of electron accelerated through potentials V_(1) and V_(2) is 1:2 the ratio of potentials V_(1) : V_(2) is