Which of the following statements regarding cathode rays is incorrect?

  • A
    They are emitted perpendicular to the surface of the cathode.
  • B
    Their properties depend on the nature of the cathode material.
  • C
    Their properties do not depend on the nature of the cathode material.
  • D
    They produce fluorescence when they strike the glass tube.

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Similar Questions

Who discovered the charge of an electron? State the charge and mass of an electron.

Match the following:
$A$. Chadwick$1$. Cathode rays
$B$. Rutherford$2$. $X$-ray spectra
$C$. Moseley$3$. Discovery of neutrons
$D$. $J$. $J$. Thomson$4$. Nuclear atom model

The size of the nucleus is measured in

$(i)$ Calculate the number of electrons which will together weigh $1 \, g$.
$(ii)$ Calculate the mass and charge of one mole of electrons.

Are neutrons present in all atomic nuclei? Explain.

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