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Law of Conservation of Energy

Find the miss...

Question

Find the missing one.
Bulb: Electrical to light energy
Solar panels: ?

A

Solar to sound energy

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B

Solar to electrical energy

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C

Solar to sound energy

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D

Solar to wind energy

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Solution

The correct option is B Solar to electrical energy
Energy can not be created or destroyed. But they can be converted from one form to another. In bulb, electrical energy gets converted to light and heat energy. Sun is the source of solar energy. Solar panels are used to make electricity, in which solar energy is converted to electrical energy.

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Similar questions

Q. Find the missing one.

Bulb: Electrical to light energy
Solar panels: ?

Q. While driving in the countryside, Kapil sees some panels attached on the street lights along the road. He finds out that these were photovoltaic solar panels which trap solar energy and converted it to electrical energy to make the streetlights function. He liked this idea so much that he got similar solar panels and installed at his residence also.
Answer the following questions based on the above information:
a). In what respects is the installation of solar panels useful to Kapil?
b). Which values is Kapil promoting by installing solar panels?

c). How can Kapil promote similar values to others in the neighbourhood?

Q. State whether the given statement is True or False :
Solar panels converts light energy to mechanical energy.

Q. Solar panels are used for harnessing solar energy. This solar energy is then used to charge an electric cell and this electric cell is used to move a toy. What are the energy changes that take place?

Q. The efficiency of a solar cell is 20% and its surface area is

4 {c m}^{2}

. Find the electrical energy generated in one second, by 3000 cells, connected in a solar panel, if

640 J

of solar energy is incident on one meter square area, in one second.

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