General Science (SET-19)


1.Atoms are composed of:
a. Electrons only
b. Protons only
c. Electrons & Protons
d. Electrons & Nuclei

2.The age of most ancient geological formation is estimated by:
a. Potassium-Argon method
b. Ra-Si method
c. C14 method
d. Uranium-lead method

3.Which of the following is used as a moderator in nuclear reactor?
a. Ordinary water
b. Radium
c. Thorium
d. Graphite

4.Isotopes are separated by:
a. Filtration
b. Sublimation
c. Distillation
d. Crystalization

5.Who suggested that the most of the mass of atom is located in nucleus?
a. Bohr
b. Thomson
c. Rutherford
d. Avogadro

6.Meson particles are found in:
a. R-rays
b. X-rays
c. Laser beam
d. Cosmic rays

7.An atom of an element with mass number 23 and atomic number 11 will have:
a. 11 neutrons, 12 protons and 11 electrons
b. 11 protons, 12 neutrons and 11 electrons
c. 11 protons, 12 electrons and 11 neutrons
d. 23 protons and 11 electrons

8.The location and energy of an electron in an atom can be specified by:
a. Atomic mass
b. Atomic number
c. Quantum numbers
d. None of these

9.Old-written material, which cannot be read easily can be read by:
a. Cosmic Rays
b. Ultraviolet rays
c. Infra Red rays
d. None of these

10.In an atomic nucleus, neutrons and protons are held together by:
a. Gravitational forces
b. Magnetic forces
c. Exchange forces
d. Coulombic forces



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