MEDIUM
10th CBSE
IMPORTANT
Earn 100

Draw a simple labelled diagram and explain the functioning of a floating gas holder type bio-gas plant.

Important Questions on Sources of Energy

MEDIUM
10th CBSE
IMPORTANT
What is the importance in India of hydroelectric plants? Describe how electric energy is generated in such plants.
MEDIUM
10th CBSE
IMPORTANT
With the help of a diagram, describe the construction and working of a box-type solar cooker. Write two advantages and two limitations of solar cookers. 
MEDIUM
10th CBSE
IMPORTANT
Describe the construction of a box type solar cooker or show it with the help of a diagram. How is the rise in temperature obtained in this set up? Mention two advantages and two limitations of solar cookers.
MEDIUM
10th CBSE
IMPORTANT
Draw a labelled diagram of the solar cooker. What purposes are served by the blackened surface, glass cover plate and the mirror in a solar cooker? What would happen if the plane glass mirror of a solar cooker is replaced by a concave glass mirror? 
MEDIUM
10th CBSE
IMPORTANT
What is the basic cause of winds to blow? Name a part of India where wind energy is commercially harnessed. What is the hindrance in developing them? 
MEDIUM
10th CBSE
IMPORTANT
The solar constant at a place is 1.4 kW m-2. How much solar energy will be received at this place per second over an area of 5 m2?
MEDIUM
10th CBSE
IMPORTANT
Explain the working of a nuclear power plant.
EASY
10th CBSE
IMPORTANT

Srishti was on summer holidays trip to her grandparent's village. She was excited to go on tour to the farmland with her grandfather. While on farmland, her grandfather showed her a biogas plant. He explained to her that bio-mass energy (energy from bio-fuels such as Wood, bio-gas and Alcohol) may be a renewable source of energy because if trees are cut from the forests for obtaining fire-wood, then more trees can be grown in the forest in a short period of time. Although, wood is a renewable source of energy, yet it should not be used on a large scale since if so then, there will be a depletion of the forests leading to an imbalance in nature. Srishti thanked her grandfather for making her understand the bio-mass energy concept.
What do you mean by bio-mass energy?