Draw a neat diagram of a biogas plant and label
(a) Inlet of slurry
(b) Digester and
(c) Gas outlet.

Important Questions on Sources of Energy

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 11

Mention why it is not possible to make use of solar cells and make use of all our energy needs. State three reasons to support your answer.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 12

Explain the principle and working of a biogas plant.

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 13

(a) Draw schematic labelled diagram of a box-type solar cooker.
(b) Name two components of the solar cooker which are responsible for increasing the temperature inside a solar cooker.
(c) Explain their function.

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 14

(a) Describe how a hydropower plant produces electricity?
(b) Write two advantages of hydroelectric energy.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 15

(a) List three factors responsible for wind.
(b) State three limitations in harnessing wind energy.

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 16

Increasing demand for fossil fuel has caused harm to our environment.
(a) List its three ill-effects.
(b) Suggest three measures to reduce the consumption of fossil fuels.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 17

(a) Name the device used to convert: (i) Solar energy to heat. (ii) Solar energy to electricity.
(b) Mention two limitations of solar energy.

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 5 - Part -1>Sources of Energy>Q 20

Explain solar panel and its working with a neat sketch.