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Science Bowl Question

📅 NSB 2013🎓 HS🔄 Round 12#️⃣ Q7❓ TOSS-UP📝 Multiple Choice

A field emission microscope requires which of the following?

W) A conductor with a very fine point
X) High energy alpha particles
Y) A light source with a wavelength shorter that the smallest observable feature size
Z) A low amplitude, time-varying magnetic field
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