Why has nuclear energy become an inevitable option for the development of the country?
Answer: Due to acute shortage of other sources of energy
How much amount of nuclear energy burnt is equivalent to the energy produced by 3000 tonnes of coal?
What is the most attractive part of nuclear energy?
Answer: Causes no pollution
Nucleus consists of two sub-particles known as?
The atom as a whole is electrically charged.
On which law is the nuclear energy explained?
Number of protons in the nucleus is called ___________
The total number of nucleons in the nucleus is called _________
To disrupt a nucleus and separate in into its component nucleons, energy must be supplied from outside and this energy is called?
The net neutrons produced per initial neutron accounting for all possible losses is called?
Answer: Multiplication factors
What is the time during which one half of a number of radioactive species decays or one half of their activity ceases?
Electrons that orbit outermost shell of an atom are called?
Answer: Valence electrons
A covalent bond is also called as ____
Which of the following statements is not true with respect to photoelectric effect -
Answer: The plot of kinetic energy of the photoelectrons against frequency of absorbed radiation gives a straight line parallel to x-axis
Who is credited with the discovery of electron?
An atom has a mass number of 37 and atomic number 17. How many protons does it have?
Which of the following mostly accounts for the mass of an atom?
Answer: Neutron and proton
Which metal was used by Rutherford in his alpha-scattering experiment?
During a chemical reaction, atomic number
Which isotope of hydrogen contains only one proton and no neutron in its nucleus?