Advertisements
Advertisements
प्रश्न
Which of the following is used in solar cooker to harvest the solar energy?
a) Solar panels
b) Silicon cell
c) Mirrors
d) Glass lid
Advertisements
उत्तर
c) Mirrors
APPEARS IN
संबंधित प्रश्न
A solar water heater cannot be used to get hot water on
Name the device which converts sunlight into electricity.
What is a solar cell? Draw the labelled diagram of a solar cell.
Why is the solar cooker box painted black from inside?
Why is the solar cooker box covered with a glass sheet?
Solar cells are made of:
(a) conductors
(b) insulators
(c) semi-conductors
(d) super-conductors
A solar cooker may not cook food if
(a) the solar cooker is not placed in the shade
(b) the glass sheet cover of solar cooker is not closed
(c) a convex mirror reflector is not used
Solar cells are used to provide the electric current to charge the batteries of a car driven by an electric motor. Describe the energy changes which take place.
What differences would you expect in the charging of car batteries (i) in bright sunlight (ii) on a cloudy day (iii) at night?
Observe the connections of cells shown in the following images.
i. Which connection will give maximum potential difference?
ii. Give one advantage and one disadvantage of this energy.
Re-write the statement by selecting the appropriate option.
The solar lamp uses the ................... energy.
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
Assertion (A): A solar cooker cooks the meal due to the greenhouse effect.
Reason (R): The plane mirror is responsible for producing the greenhouse effect.
What are the major utilizers of solar energy in the world?
Solar photovoltaic cells convert the solar radiation energy directly into ______ energy.
Complete the following flow chart.
Solar energy is a renewable energy. How?
What is the disadvantage of solar energy?
Observe the figure and label it properly:
- What is the figure related to?
- Why are reflectors used?
- Draw a flow chart showing different stages in such a process.
- How is the process used to generate electricity?
- What other method can be used to generate electricity using the same energy source?
