4) Let h(t) be the triangular pulse shown in Fig (a) below, and x(t) be teh impulse train in Fig. (b), that is x(t) = E 6(t – KT). k=-∞ Determine and sketch y(t) = x(t) * h(t) for the following values of T а) Т — 4 b) Т— 2 3 с) Т — d) T = 1 h(t) 1 (а) x(t) -2T -T 2T 3T (b)

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Q: I just want to know how the peak is 5.5 since it is ideal diode

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Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).