Match the List-1 (type of 8-bit ADC) with List-2(Minimum conversion time in clock cycles)

List - 1

A. Successive approximation
B. Dual-slope
C. Parallel Comparator

List - 2

1) 1
2) 8
3) 16
4) 256
5) 512

A load impedance (200 + j0) $$\Omega $$ is to be matched to a 50$$\Omega $$ lossless transmission line by using a quarter wave line transformer (QWT). The characteristic impedance of the QWT required is

A plane electromagnetic wave traveling along the +z-direction, has its electric field given by E_x = 2 cos $$\left( {\omega t} \right)$$ and E_y = 2 cos $$\left( {\omega t + {{90}^ \circ }} \right)$$ the wave is