The charge on an electron was determine by ________________?

Related Mcqs:

1. When an electron moving with a uniform speed in a vacuum enters a magnetic field in a direction perpendicular to the field the subsequent path of the electron is ___________________?

   A. a straight line parallel to the field B. a parabola in a plane perpendicular to the field C. a circle in a plane perpendicular to the field D. a straight line along its initial direction...

2. For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?

   A. 107m/sec B. Should be greater than the speed of light. C. Be zero D. Not be wave-like...

3. In bringing an electron towards the second electron, the electrostatic potential energy of the system

   A. Decreases B. increases C. remains the same D. becomes zero Submitted by: Tauseef Ali...

4. A particle having the mass of an electron and the charge of a proton is called a______________?

   A. Antiproton B. Positron C. Gamma rays D. Photon...

5. A million electron are added to a pith ball. Its charge is________?

   A. – 1.6 × 10–12 coulomb B. – 1.6 × 10–13 coulomb C. – 1.6 × 10 –18 coulomb D. – 1.6 × 10 coulomb Submitted by: Tauseef Ali...

6. A cube of side 5 cm has a charge of 6 C. The surface density of charge is_________?

   A. 100 C m–2 B. 200 C m–2 C. 300 C m–2 D. 400 C m–2 Submitted by: Tauseef Ali...

7. In an electron microscope, we use energetic particles because of______________?

   A. Penetrating power is high B. Kinetic energy is large C. Wavelength is very short D. All the above reasons...

8. In the electron microscope, electric & magnetic fields are used as_______________?

   A. Electromagnetic gun B. Source of electromagnetic waves C. Deflecting charged particle D. Converging source of electrons...

9. Electron moves in the orbit as________________?

   A. Simple vibratory motion B. Standing wave motion C. Vibratory motion like up and down D. S.H.M likes the sound...

10. Wave-like characteristic of electron is demonstrated by______________?

    A. Line spectrum of atoms B. Production of x-rays. C. Diffraction by crystalline solids D. Photoelectric effect...