Which Instrument Below Emits Photons That Have Wave Crests in Exact

question 37

Multiple Choice

Which instrument below emits photons that have wave crests in exact alignment?

• A) electron microscope
• B) light amplification by stimulated emission of radiation
• C) telescope fitted with a spectroscope
• D) spectroscope which is not part of a telescope
• E) a source of alpha particles in a physics laboratory

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