An example of conventional source of energy is :

Question

Accepted Answer

Conventional sources of energy are those that have been traditionally used for a long time and are well-established in terms of technology and infrastructure. These sources are typically non-renewable and include fossil fuels and nuclear energy.

1. **Explanation for Option 4 (Nuclear Energy):**  
   Nuclear energy is considered a conventional source of energy because it has been used for several decades to generate electricity. It relies on nuclear reactions, primarily fission, to produce heat, which is then used to generate electricity. Nuclear power plants have been a significant part of the global energy mix since the mid-20th century. The technology and infrastructure for nuclear energy are well-established, making it a conventional source of energy.

2. **Explanation for why other options are incorrect:**

- **Option 1 (Tidal Energy):**  
     Tidal energy is not considered a conventional source of energy. It is a form of renewable energy that harnesses the energy from tidal movements in oceans and seas. While it has potential, it is not as widely used or established as nuclear energy.

- **Option 2 (Geothermal Energy):**  
     Geothermal energy is also a renewable source of energy, derived from the natural heat of the Earth. Although it has been used in some regions for a long time, it is not as globally established or conventional as nuclear energy.

- **Option 3 (Solar Energy):**  
     Solar energy is a renewable energy source that captures energy from the sun. It has gained popularity in recent years due to advancements in technology and decreasing costs. However, it is not considered a conventional source of energy in the same way as nuclear energy, which has been a staple in energy production for a longer period.

In conclusion, nuclear energy is the correct answer as it is a conventional source of energy, having been a significant part of the energy landscape for many decades, with well-established technology and infrastructure.