A beam of electrons is employed in
A) a gold-foil experiment.
B) a cathode-ray tube.
C) a LED television screen.
D) an oil-drop experiment.
Correct Answer:
Verified
Q11: Credit for research in our knowledge of
Q12: Some alpha particles pass through gold foil
Q13: Credit for research in our knowledge of
Q14: Both electrons and protons have equal-magnitude
A)mass.
B)charge.
C)energy.
D)all of
Q15: By scattering alpha particles from gold, Rutherford
Q17: The first to be credited for assigning
Q18: When Millikan observed oil drops hovering at
Q19: The spectral lines of atomic spectra are
A)images
Q20: An excited hydrogen atom is capable of
Q21: Two spectral lines in a spectrum have
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