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1. |
The minimum wavelength of X-rays produced by the bombardment of electrons on the screen of a television set where the accelerating potential is 2.0K V will be |
A. | 6.2 x 10-10m |
B. | 9.1 x 10-18m |
C. | 3.11 x 10-10m |
D. | 4 x 10-10m |
Answer» B. 9.1 x 10-18m | |