MEDIUM
Earn 100

What devices run by the electricity from solar energy?

Important Questions on Sources of Energy

MEDIUM

In a Solar Furnace, sunlight is concentrated at the ________ of the concave mirror.

EASY
Which of the following is not derived from the sun?
MEDIUM

What is the condition necessary for Ocean Thermal power plants to operate?

MEDIUM
Write any three advantages and disadvantages of solar cell panels.
EASY
Name the type of energy from sea that we get due to the gravitational pull of mainly the moon on the spinning earth the level of water in the sea rises and falls.
MEDIUM
Mention the advantages and disadvantages associated with solar cells.
HARD
Explain working of Solar water heater in short by draw a well labelled diagram.
EASY
Why are we looking at alternative sources of energy?  Name a non-conventional source of energy and its two advantages.
EASY

Plane mirror reflector is used inside the solar cooker box. Explain why.

EASY
Can any sources of energy be pollution free? Why and why not? State two limitations of the energy that can be obtained from the Oceans.
EASY
Which of the following cells is being used in the communication satellite.
MEDIUM
Write the advantages of using a solar cooker. (any 3)
MEDIUM
What are solar cells? Explain the structure of solar panel. List two principal advantages associated with solar cells.
MEDIUM
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
With the help of a labelled diagram, explain the construction and working of a solar cooker.
EASY
List two reasons which limit the usage of solar cells for harnessing energy for domestic use.