The unilateral Laplace transform of f(t) is The unilateral Laplace transform of t f(t)
Answer: Option D.
Consider the Amplitude Modulated (AM) signal Ac cosωct + 2 cos ωmt cosωct. For demodulating the signal using envelope detector, the minimum value of Ac should be
2
1
0.5
Zero
Answer: Option A.
The input to a coherent detector is DSB-SC signal plus noise. The noise at the detector output is
the in-phase component
the quadrature-component
The envelope
Zero
Answer: Option A.
What is the output of this C code?
#include
void foo(const int *);
int main()
{
const int j = 20;
printf("%d ", j);
foo(&j);
printf("%d", j);
}
void foo(const int *j)
{
*j = 500;
}
Compile time error
10 20
Undefined value
10
Answer: Option A.
Constant type value cannot be changed
The two atomic operations permissible on semaphores are : (choose two)
The unilateral Laplace transform of t f(t)
