MEDIUM
10th CBSE
IMPORTANT
Earn 100

With the help of a schematic diagram, describe the working of a solar water heater.

Important Questions on Sources of Energy

MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 3
On what principle does a solar water heater operate? Draw a labelled schematic diagram for a solar water heater. The solar constant at a place is 1.4 kW/m2. How much solar energy will be received at this place per second over an area of  5 m2?
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 4
Name any three forms of energy of the oceans which can be converted into usable energy forms. Describe how it is done in each case. What is the likelihood of their use on a large scale?
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 5
What are (i) solar concentrators and (ii) solar cell panels? How are they an improvement on simple devices? Why is it that solar cell panels are costly?
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 6
Which is the process used to harness nuclear energy these days? Explain it briefly.
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 7
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 8
Make a list of conventional and non-conventional sources of energy. Give a brief description of harnessing one non-conventional source of energy.
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 9
Why is there a need for harnessing non-conventional sources of energy? How can energy be harnessed from the sea in different ways?
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 5 - Sources of Energy>EXERCISE - 5C>Q 10
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise the pollution caused by various sources of energy including non-conventional sources of energy.