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What does the 'E' in LASER stand for? (20 points)

	Entropy
	Emission
	Electric
	Energy
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written by Ben • topics: science block unblock • words block unblock • laser block unblock • Technology block unblock • facts block unblock

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Lasers are pretty cool. When was the first working laser created? (30 points)

	1920
	1900
	1960
	1940
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written by SteveD503 • topics: science block unblock • history of science block unblock • laser block unblock • Bell Labs block unblock

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Which best describes the essential components of a laser? (20 points)

	battery, magic, heat
	bulb, lens, aperature
	energy source, gain medium, and resonant cavity
	electricity, pump, lens
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written by sam • topics: science block unblock • Technology block unblock • laser block unblock • physics block unblock • quantum mechanics block unblock

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What is a maser? (20 points)

	a taser that kills
	like a laser, but with microwaves
	a fast, fast car
	an ancient weapon
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written by sam • topics: science block unblock • physics block unblock • laser block unblock • quantum mechanics block unblock • general block unblock and 1 more » • Technology

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How long/short is an attosecond? (30 points)

	10^-18
	10^15
	10^18
	10^-15
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written by rickdick • topics: laser block unblock • physical chemistry block unblock • physics block unblock • time block unblock

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