Answer : Option BExplaination / Solution:
The moment of inertia is a physical quantity which tells how easily a body can be rotated about a given axis. It is a rotational analogue of mass. It plays the same role in rotational motion as 'inertia' does in translational motion. Large moment of inertia also helps in keeping the rotation motion uniform.
Q3.The molecules which move from higher to lower regions are called as
Answer : Option CExplaination / Solution:
In diffusion, molecules move in a random fashion, the net result being substances moving from regions of higher concentration to regions of lower concentration.
Q4.According to Bernoulli’s equation for a varying cross-section pipe carrying incompressible liquid, pressure p, density ρ velocity v and height h at a place where acceleration due to gravity is g
Answer : Option BExplaination / Solution:
According to conservation of enegy,
Total energy of any system is always conserved.
And Bernoulli's Theorem says that at any point of the pipe in which the liquid is flowing the sum of all the energies (Pressure Energy,Kinetic Energy,Potential Energy) is always constant.
Q5.According to Hess’s Law if a reaction takes place in several steps then its standard reaction enthalpy is
Answer : Option CExplaination / Solution:
Hess’s Law states that the sum of the standard enthalpies of the intermediate reactions into which the overall reaction may be divided at the same temperature.
Q6.The most abundant type of animal tissue in the complex animals is
Answer : Option BExplaination / Solution:
The most abundant type of animal tissue connective tissue as it forms variety of tissues such as blood, bone, cartilage, adipose, lymph, tendon and ligament. These connective tissue types perform wide range of functions in the animal body such as giving support, packing, repairing, storing of fat, connecting different organs, etc.
Q7.All prokaryotic, unicellular organisms are included under kingdom
Answer : Option DExplaination / Solution:
All prokaryotic, unicellular organisms are included in the kingdom Monera. The Eukaryotic unicellular organisms are placed in Protista kingdom.