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Which of the following statements are correct?I. em ratio of anode rays is not constant.II. em ratio of protons is not constant.III. em ratio of β-particles is constant.IV. em ratio of cathode rays is constant.Choose the correct option.

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a

I, II and III

b

I, III and IV

c

II, III and IV

d

I, II and IV

answer is B.

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Detailed Solution

The correct statements areem ratio of anode rays is not constant.em ratio of protons is constantem ratio of β-particles is constantem ratio of cathode rays is constant.

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Which of the following statements are correct?I. em ratio of anode rays is not constant.II. em ratio of protons is not constant.III. em ratio of β-particles is constant.IV. em ratio of cathode rays is constant.Choose the correct option.