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GUJCET 2011 Chemistry Solved Paper

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Question : 1

Total: 40

Calculate the velocity of an electron having wavelength of 0.15‌nm.
Mass of an electron is 9.109×10−28 grams. ( h=6.626×10−27 erg-second).

2.062×10−8‌cm. sec−1
2.062×10−15‌cm. sec−1
2.062×10−10‌cm. sec−1
2.062×10−9‌cm. sec−1
None of the above

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