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cathode rays
plural noun
- a stream of electrons emitted from the surface of a cathode in a valve
Example Sentences
When the electrode was heated, it would shoot cathode rays across the chamber toward the sphere.
The “cathode rays” in a CRT monitor are just electrons accelerated through a gap between plates with a couple thousand volts between them.
Directed on to the glass walls of the tube – or as researchers discovered, on to sheets of particular minerals – the cathode rays stimulated bright fluorescence.
Lenard, through experimenting with cathode rays, discovered that the energy of the electron depends on the wavelength of light.
Philipp Lenard, who won a Nobel Prize for his work on cathode rays, wrote a four-volume treatise on the one true science and called it “German Physics.”
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[kahr-dn-l]
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Quiz

Q: Fill in the blank: "Salchipapas" is a portmanteau of the Spanish words for ______ and ______.
- salt and potatoes
- sausage and French fries
- sardines and French fries
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