1. The characteristics of H and V sync pulses in a colour TV receiver are H sync, pulses are narrow and have frequency of 15625 HzV sync, pulses are much wider and have frequency of 50 HzH and V pulses have almost the same size but frequencies of 15625 and 50 Hz respectivelyV sync, pulses are very narrow but H sync, pulses are wide and their frequencies are 15625 Hz and 50 Hz respectively Which of the above are correct?