Tag: renewable and non-renewable sources of energy

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Questions Related to renewable and non-renewable sources of energy

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

How is solar energy converted to electrical energy?

  1. Using solar heating device

  2. Using solar cell

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Solar heating device first converts heat energy of Sun to heat up a substance, which is then converted to electrical energy.

Solar cell converts light energy of Sun to electrical energy.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Why are a large number of solar cells are joined in a solar panel?

  1. To reduce cost of production.

  2. To get more electricity.

  3. Its a tradition.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Solar panel uses multiple solar cells to increase electricity produced by the system.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

How is more electricity production achieved with solar cell?

  1. Joining many solar cells.

  2. Decreasing the surface area of solar cell.

  3. Rotating solar cell in random directions.

  4. Removing clouds.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solar panel uses multiple cells to add up electricity output from the system.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Which of the following devices convert solar energy to electricity

  1. Solar Cooker

  2. Solar Cell

  3. LED

  4. Pressure cooker
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Solar cell converts light energy of sun into electrical energy.

Solar cooker focuses heat energy of sun.
LED and pressure cooker are not related to solar energy.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Which of the following uses solar cells?

  1. Natural satellites

  2. Water dams

  3. Artificial satellites

  4. Motor vehicle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Solar cells have access only to the solar energy and chemical energy (battery embedded in satellite system). However, chemical energy is limited. Hence, solar energy is the standard source of energy used in satellites.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Why do solar cells have a great future?

  1. They provide a clean source of energy.

  2. Supply of energy from sun is unlimited.

  3. The cost of conventional sources of energy is rising while cost of solar cells is reducing.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar cell produces pure electricity with no waste products and is environment friendly. 

Solar energy is unlimited, so solar cells have the ability to produce enormous electrical energy. 
With improvement in manufacturing technologies and use of ICs, cost of solar cells is reducing. However, with depletion of natural resources conventional sources of energy are getting costlier. 

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Which of the following materials play a key role in the functioning of a solar cell

  1. Silicon

  2. Glass

  3. Plastic

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When light energy is incident on Si, it is converted to electricity by the principle of photovoltaic effect. GaAs, InP are other materials with similar property. 

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

The cost of solar cells is

  1. decreasing exponentially

  2. decreasing slowly

  3. constant

  4. increasing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The cost of solar cells is reducing exponentially.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

The use of solar energy on large scale becomes harder because:

  1. Its installation cost is often more than conventional systems.

  2. Storing of large amounts of D.C. is not easy.

  3. It requires a huge area of exposure to sunlight to gather substantial energy.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solar energy production on a large scale is difficult on a large scale because:

1. Its installation cost is much more than conventional systems because of the delicate substances.
2. Output of solar energy conversion is DC and storing DC is difficult and costly on a large scale.
3. To efficiently supply the demands on large scale, huge areas of land are required to get sufficient exposure of Sun.