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

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. By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?

   A. 10²
   B. 10³⁶
   C. 10¹²
   D. None of these

   Submitted by: Nayab Idrees

4. When a pure inductor of inductance L and a pure capacitor of capacitance C are connected in parallel to a sinusoidal potential difference V the potential difference across both L & C will be_______________?

   A. Same
   B. Different
   C. At L will be more than at C
   D. At L will be less than at C

5. Potential energy means?

   A. Due to position of object
   B. Due to motion of object
   C. Due to gravity
   D. None of these

   Submitted by: Kamran khan

6. The charge on an electron was determine by ________________?

   A. Ampere
   B. Maxwell
   C. Millikan
   D. Thomson

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. In addition to the daughter nucleus and an electron or positron, the products of a beta decay

    A. Neutrons
    B. Neutrino
    C. Alpha particle
    D. Proton

    Submitted by: Alina Malik