Answer : Option BExplaination / Solution:
The kinetic theory describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant rapid motion that has randomness arising from their many collisions with each other and with the walls of the container.
It will applicable only for gases
Q2.What is the unit of mass when measured on the atomic scale?
Answer : Option DExplaination / Solution:
The unified atomic mass unit (u) is defined as one twelfth of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest.
Q4.Which of the following is most general charachteristic of Magnetic field
Answer : Option AExplaination / Solution: A moving charge experiences a force in a magnetic field called magnetic Lorentz force given byF⃗ =q(v⃗ ×B⃗ ).This force acts only if the particle (i) has charge q(ii) has a non zero velocity v and (iii) does not move parallel or anti parallel to the magnetic field B. A current carrying conductor placed in a magnetic field experiences a force given byF⃗ =Il⃗ ×B⃗
Answer : Option BExplaination / Solution:
Heat is the amount of energy flowing from one body of matter to another spontaneously due to their temperature difference.
Q6.Measurement of a physical quantity is essentially the
Answer : Option BExplaination / Solution:
The Measurement of a given quantity is essentially an act or result of comparison between a quantity whose magnitude (amount) is unknown, with a similar quantity whose magnitude (amount) is known, the latter quantity being called a Standard.
Answer : Option AExplaination / Solution:
In oscillatory motion object moves to and fro about mean position periodically or after a particular interval of time.All oscillatory motions are periodic in nature.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0