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A narrow beam of electrons, accelerated ...

A narrow beam of electrons, accelerated by a potential difference of `250 V`, passes between two parallel metal plates `0.030 m` long and `0.005 m` apart in an evacuated tube and then strikes a fluorescent screen `0.175 m` from the centre of the plates. A potential difference of `10 V` is established between the plates. What is the deflection produced on the screen.

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The correct Answer is:
0.02 m
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SL ARORA-ELECTRONS AND PHOTONS-TYPE A : Problem For Self Practice
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  10. An alpha-particle of mass 6.65xx10^(-27) kg travels perpendicular to a...

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  11. When a beam of electrons passes through an electrostatic field of 300 ...

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  18. An electron moving with a speed of 2.5xx10^(-7)ms^(-1) enters a space ...

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  19. Two parallel horizontal plane plates are 30 mm long and 10 mm apart. A...

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  20. In a cathode ray tube the length of deflection plates is 78 mm and the...

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