Narendra Kumar Solutions for Chapter: Sources of Energy, Exercise 5: IMPORTANT QUESTIONS

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

The solar constant at a place is $1.4 \mathrm{kW} {\mathrm{m}}^{-2}$. How much solar energy will be received at this place per second over an area of $5 {\mathrm{m}}^2$?

Explain the working of a nuclear power plant.

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?

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.
Should we use wood as a fuel on a large scale? Justify with reasons.

All the students of class ${10}^{th}$ were excited as they were on a school trip to a Tehri Dam. During the Dam visit, the science teacher Mr. Sharma showed them the hydro-electric power generation plant. Mr. Sharma explained to the students that the electricity produced from the kinetic energy of the flowing water is called hydro-electric power and a plant which generates hydro-electric power is known as a hydro-electric power plant. In order to produce electricity, a high-rise dam is built to stop the flowing water.
What is hydro-electric power? 

All the students of class ${10}^{th}$ were excited as they were on a school trip to a Tehri Dam. During the Dam visit the science teacher Mr. Sharma showed them the hydro-electric power generation plant. Mr. Sharma explained to the students that the electricity produced from the kinetic energy of the flowing water is called hydro-electric power and a plant which generates hydro-electric power is known as a hydro-electric power plant. In order to produce electricity, a high-rise dam is built to stop the flowing water.
What is a hydro-electric power plant? 

All the students of class ${10}^{th}$ were excited as they were on a school trip to a Tehri Dam. During the Dam visit, the science teacher Mr. Sharma showed them the hydro-electric power generation plant. Mr. Sharma explained the students that the electricity produced from the kinetic energy of the flowing water is called hydro-electric power and a plant which generates hydro-electric power is known as a hydro-electric power plant. In order to produce electricity, a high-rise dam is built to stop the flowing water.
Comment your views for the construction of dams.