EASY
Earn 100

The maximum wind energy available is directly proportional to
(a)Cube of wind velocity.
(b)Air density.
(c)Square root of rotor diameter.
(d)All the above

100% studentsanswered this correctly
Important Questions on Energy Resources
MEDIUM
With the help of a diagram describe the working of a windmill to lift underground water.

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MEDIUM

EASY

HARD

EASY

MEDIUM

MEDIUM
Explain the difference:
Conventional and Non-conventional sources of energy.

HARD

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HARD
What causes wind to blow? Name a part of India where wind energy is commercially harnessed. Compare wind power and the power of flowing water for generating electricity. What are the hindrances in developing them?

EASY
Wind is caused due to the _____ heating of air near the earth's surface.

HARD

MEDIUM
What is the minimum speed of wind to run a windmill to maintain the necessary speed of turbine in an electric generator?

EASY

MEDIUM
When we harness wind energy, we harness solar energy indirectly. Explain.

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EASY
Give scientific reason: Hydroelectric energy, solar energy and wind energy are called renewable energies.

MEDIUM

HARD

