According to Quark theory, there are _________ elementary particles.

Related Mcqs:

1. When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?

   A. Visible
   B. Transparent
   C. Invisible
   D. opaque
   E. None of these

2. Atom is made up of____________different kinds of subatomic particles:

   A. Three
   B. Two
   C. Four
   D. None

3. The alpha particles are compact clusters of______________?

   A. Electron and Proton
   B. Two Protons and two Neutrons
   C. Three protons and three Neutrons
   D. None

4. What are the three subatomic particles of an atom?

   A. Protons,Neutrons & Electrons
   B. Protons,Nucleus & Electrons
   C. Protons,Nucleus & Elements.
   D. Elements,Nucleus & Protons

5. _____________ are positively (+) charged particles?

   A. Neutrons
   B. Electrons
   C. Protons
   D. None of These

6. ___________are negatively (-) charged particles of an atom?

   A. Protons
   B. Neutrons
   C. Electrons
   D. None of These

7. Fine organic or inorganic particles suspended in air is called _______________?

   A. particulate pollutant
   B. gaseous pollutant
   C. aerosol
   D. none of these

   Submitted by: Mansoor Ul Haque

8. Who said that light is made of corpuscles/particles?

   A. Maxwell
   B. Einstein
   B. Newton
   D. Huygein

   Submitted by: Munwar Ali Sohu

9. The subatomic particles arriving from outer space having high energy are called?

   A. Protons
   B. Electrons
   C. Cosmic rays
   D. None of the above

   Submitted by: Malik Asghar Hussain

10. The solar wind is a stream of charged particles mostly?

    A. protons and electrons; flows out from the sun
    B. electrons; flows out from the sun
    C. protons; flows out from the sun
    D. protons and electrons; revolves around the sun

    Submitted by: Muhammad Abdullah