UGC NET Questions (Paper – 1)

Non-conventional energy sources are those that are relatively new, renewable and environmentally friendly compared with conventional fossil fuels. Solar photovoltaic power converts sunlight directly into electricity without combustion. It relies on an abundant, renewable resource and has low operational emissions. In India’s energy planning, solar PV is a key non-conventional source, making option B the correct choice.

Option A:
Option A is incorrect because coal-based thermal power is a conventional energy source. It has been used for many decades and is associated with significant air pollution and greenhouse gas emissions.

Option B:
Option B is correct since solar PV fits the criteria of renewable and non-conventional energy. Its expansion is central to meeting sustainable development and climate commitments.

Option C:
Option C is incorrect as diesel generators run on petroleum, a conventional fossil fuel. They are typically used as backup and emit considerable pollutants.

Option D:
Option D is incorrect because natural gas, though cleaner than coal, is still a fossil fuel. Combined cycle plants improve efficiency but remain conventional in terms of resource type.