Answer / vikas

impulse is simply a very large signal amplitude for very
short duration of time. it's graph has high undefined
magnitude at t=0 and amplitude to be zero for rest of the
time. practical example is likely to be the 'lightning'.
impulse has infinite bandwidth.

Answer / shakeerio

an impulse function also known as delta function, impulse
function area remains constant at all condition, short
duration high amplitude pulse.

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