The value of e/m ratio of electron is________________?

Related Mcqs:

1. When an electron is moving with velocity of 2.188 x 106 ms-1 in the first orbit of Bohrs model of hydrogen. The de Broglie wavelength of electron is______________?

   A. 0.33 nm B. 0.34 nm C. 0.35 nm D. 0.36 nm...

2. An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

   A. Group IA B. Group IB C. Group VIIA D. Group VIII...

3. Quantum number which tells the energy of electron is________________?

   A. n B. 1 C. m D. s...

4. The mass of one mole of electron is________________?

   A. 1.008 B. 0.55 C. 0.184 D. 1.637...

5. Which of the following will have highest value of electron affinity_________________?

   A. F B. Cl C. Br D. I...

6. Higher value of electron affinity means__________________?

   A. Atom will lose electron easily B. Atom will gain electron easily C. Atom may form di-positive ion D. The reason is unknown...

7. The absolute value of charge on electron was determined by ________ ?

   A. J.J.Thomson B. Chadwick C. Rutherford D. Robert Millikan Submitted by: Rashid Mehmood...

8. When electron jump into orbit 1 then series obtained is___________________?

   A. Lyman B. Paschen C. Pfund D. Brackett...

9. Charge of electron was measured by__________________?

   A. J.J Thomson B. Millikan C. Rutherford D. Perrin...

10. Wavelength of electron was verified by_________________?

    A. Moseley B. Davisson and Germer C. Einstein D. Roentgen...