Q: What is the impact of literacy on development?
A: An educated family is normally treated as a developed family. In
this way, a country of educated people is treated as a developed
country. Literacy level plays a major role in the economic development
of a nation.
The literate people can understand the dynamic changes taking place in
the society.
Literacy gives many new opportunities for their livelihood.
Literacy leads to employment opportunities throughout the world.
Literacy helps to change the superstitious minds and leads to increase
rationalization and positive attitude among people.
Literacy brings awareness among the people due to which political
stability is established.
This political stability leads to development in all fields.
The society of literate people becomes a knowledge society.
Q: What is the difference between an agricultural labourer and a cultivator?
A: Cultivator: A cultivator produces agricultural production in his
own land or on a land taken on rent.
He invests some capital on agriculture.
He experiences the profit or loss.
He avails credit facilities from banks and cooperative societies
Agricultural labourer: An agricultural labourer works in the
agricultural field of some other farmer for wages in cash or kind. He
does not have any own land.
He doesn't invest anything.
He is not responsible for any sort of profit or loss.
There is no credit facility to these agricultural labourers.
Q: What are the reasons for increasing population after Indian Independence?
A: After independence in India, the population has been increasing
tremendously. The main reasons for this population explosion are as
follows:
Effective handling of famine, drought and flood situations by
implementing five year plans.
Agriculture is modernized and irrigation facilities are improved.
Green Revolution has been taken place.
Effective control of dreadful epidemic diseases through the
advancement of medical technology and wide spread diffusion of health
care delivery system to all parts of the country and to all sections
of people so that the death rate has fallen very sharply.
The high birth-rate could not be controlled as expected because of
illiteracy, religious and social attitude of the people. The family
planning programme of the government has not been very successful for
effective control of birth rate on par with that of the death-rate.
As a result, the disparity between birth-rate and death-rate has widened.
The spread of education, development of science and technology and
effective as well as optimum utilization of all the available
resources have given greater space and prospects for sustainability.
10th Maths Imp Questions from Mensuration - New Syllabus
shapes that you come across in daily life situations have been
discussed. To find surface area or volume of these solids, you need to
split it into known shapes and apply the formulae accordingly.
In the following model questions the procedure of solving them is
given. Try to solve the problems yourself.
Senior Inter Physics Imp Questions - Electric Field and Potential
Q: Can there be electric potential at a point with zero electric
intensity? Give an example.
A: Yes. Ex: At any point inside a charged hollow conducting sphere
electric intensity is zero (E = 0) but electric potential is NOT Zero
(V ≠ 0).
Q: Can there be electric intensity at a point with zero electric
potential? Give an example.
A: Yes. Ex: At the mid point of an electric dipole electric potential
is zero (V = 0) but electric intensity is NOT Zero (E ≠ 0).
Q: What is equipotential surface? Why is an electric field always at
right angles to the equi - potential surface?
A: An equi-potential surface is a surface in an electric field on
which electric potential is same at all points.
If the electric field is not at right angles to equi-potential
surface, it would have nonzero components along the surface and work
would have to be done in moving an electric charge between two points
on the surface which is NOT correct.
Q: Define electric potential.
A: Electric potential: Electrostatic potential at any point in a
region of electric field is the negative of work done in bringing a
unit positive charge from infinity to that point.
intensity? Give an example.
A: Yes. Ex: At any point inside a charged hollow conducting sphere
electric intensity is zero (E = 0) but electric potential is NOT Zero
(V ≠ 0).
Q: Can there be electric intensity at a point with zero electric
potential? Give an example.
A: Yes. Ex: At the mid point of an electric dipole electric potential
is zero (V = 0) but electric intensity is NOT Zero (E ≠ 0).
Q: What is equipotential surface? Why is an electric field always at
right angles to the equi - potential surface?
A: An equi-potential surface is a surface in an electric field on
which electric potential is same at all points.
If the electric field is not at right angles to equi-potential
surface, it would have nonzero components along the surface and work
would have to be done in moving an electric charge between two points
on the surface which is NOT correct.
Q: Define electric potential.
A: Electric potential: Electrostatic potential at any point in a
region of electric field is the negative of work done in bringing a
unit positive charge from infinity to that point.
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