When an electron acceleration by potential different `U` is bombarded on a specific metal, the emitted X-ray spectrum obtained is shown in figure . If the potential different is reduced to `U//3` , the correct spectrum is B. C. D.

When an electron acceleration by potential different `U` is bombarded

1.	When an electron acceleration by potential different `U` is bombarded on a specific metal, the emitted X-ray spectrum obtained is shown in figure . If the potential different is reduced to `U//3` , the correct spectrum is B. C. D.
Answer» Correct Answer - B `lambda_(m)` will increase to `3 lambda_(m)` due to derease in the energy of bombarding electrons. Hence , no characteristic X- ray willl be visible , only continuous X- ray willl be produced.

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When an electron acceleration by potential different `U` is bombarded on a specific metal, the emitted X-ray spectrum obtained is shown in figure . If the potential different is reduced to `U//3` , the correct spectrum is B. C. D.

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