Electrons are emitted in a cathode ray tube with a velocity of 1000 m/s. Select the correct statement among the following is: 
1. The de Broglie wavelength of an electron is 666.67 nm.
2. The cathode rays travel from the cathode to the anode.
3. The characteristics of electrons depend on the metal used in the cathode.
4. The characteristics of electrons depend on the gas filled inside the cathode tube.
Subtopic:  Introduction of Atomic Structure | De Broglie Equation |
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