The drawing shows four moving pulses. Although shown as separated, the four pulses exactly overlap each other at the instant shown. Which combination of these pulses would produce a resultant pulse with the highest peak and the deepest valley at this instant?

(a) 1 and 2

(b) 2, 3, and 4

(c) 2 and 3

(d) 1, 2, and 3

(e) 1 and 3

Transcribed Image Text:

(1) (2) (3) (4)