MCQOPTIONS
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MCQOPTIONS
| 1. |
If a possible representation of a band pass signal is obtained by expressing xl (t) as (x_l (t)=a(t)e^{j (t}) ) then what are the equations of a(t) and (t)? |
| A. | a(t) = ( sqrt{u_c^2 (t)+u_s^2 (t)} ) and (t)= (tan^{-1} frac{u_s (t)}{u_c (t)} ) |
| B. | a(t) = ( sqrt{u_c^2 (t)-u_s^2 (t)} ) and (t)= (tan^{-1} frac{u_s (t)}{u_c (t)} ) |
| C. | a(t) = ( sqrt{u_c^2 (t)+u_s^2 (t)} ) and (t)= (tan^{-1} frac{u_c (t)}{u_s (t)} ) |
| D. | a(t) = ( sqrt{u_s^2 (t)-u_c^2 (t)} ) and (t)= (tan^{-1} u2061 frac{u_s (t)}{u_c (t)} ) |
| Answer» B. a(t) = ( sqrt{u_c^2 (t)-u_s^2 (t)} ) and (t)= (tan^{-1} frac{u_s (t)}{u_c (t)} ) | |