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What changes in a discharge tube used fo...

What changes in a discharge tube used for producing cathode rays are required to obtain anode rays?

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The correct Answer is:
Cathode should be perforated and the gas pressure should be moderate.
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ICSE-STRUCTURE OF ATOM-Short Answer Type Questions
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  2. Determine the mass of an electron if for an electron e/m=1.759 xx 10^(...

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  3. What changes in a discharge tube used for producing cathode rays are r...

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  4. Why proton is regarded as a subatomic particle?

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  5. What happens when the radiations obtained from a radio active substanc...

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  6. Discuss the effect of alpha-, beta- and gamma-rays on a photographic p...

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  7. What is the plum pudding model of the atom?

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  8. Which particles are mainly responsible for the mass of an atom?

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  9. Define atomic number and mass number of an atom.

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  10. Define isotopes and isobars.

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  11. Define wave number. How is it related to frequency and wavelength?

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  12. Which of the following are not electromagnetic waves? (i) alpha-rays...

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  13. What is photoelectric effect? Mention the Einstein's photoelectric equ...

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  14. Why light is sald to possess a dual nature?

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  15. What do you understand by the term spectrum ?

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  16. Mention the main points of difference between the emission and absorpt...

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  17. How many series are found in the spectrum of atomic hydrogen? Mention ...

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  18. State one major drawback of Rutherford's model.

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  19. Explain what is meant by quantisation of energy.

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  20. Electronic energy is negative because:

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