2. Sample Papers
  3. 11th Class
  4. Chemistry

11th Class Chemistry Sample Paper Chemistry Sample Paper-1

  • question_answer
    An electron is continuously accelerated in a vacuum tube by applying potential difference. If the de-Broglie's wavelength is decreased by 10%, the change in the kinetic energy of the electron is (nearly)

    A)  Decreased by 11%        

    B)  Increased by 23.4%

    C)  Increased by 10%         

    D)  Increased by 11.1%

    Correct Answer: B

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