Question
Explain how, geothermal energy is used to generate electricity.
✓
Answer
Extremely hot rocks present below the surface of earth heat the underground water and turn it into steam. As more and more steam is formed between the rocks, it gets compressed to high pressures. This high pressure steam is brought up through pipes and is used to run the turbine of a generator to produce electricity.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Obtain the relation between the refractive index of the second medium with respect to the first medium and the refractive index of the first medium with respect to the second medium.
Consider the circuit given below where A, B and C are three identical light bulbs of constant resistance.
- List the bulbs in order of increasing brightness.
- If C burns out, what will be the brightness of A now compared with before?
- If B burns out instead, what will be the brightness of A and C compared with before?
Show the steps involved in the extraction of moderately reactive metals from their sulphide ores.
A man standing in front of a special mirror finds his image having a very small head, a fat body and legs of normal size. What is the shape of:
- Top part of the mirror?
- Middle part of the mirror?
- Bottom part of the mirror?
Homologous series of alkenes.
Explain the following reaction with an example.
Saponification
Saponification
Name the reaction which is usually used in the conversion of vegetable oils to fats. Explain the reaction involved in detail. Write a chemical equation to illustrate your answer.
Observe the given figure and answer the following questions:
i. Name the process represented by the figure.
ii. State the two laws related to the process.
i. Name the process represented by the figure.
ii. State the two laws related to the process.
Find the position and nature of the image of an object $5\ cm$ high and 10cm in front of a convex lens of focal length $6\ cm.$
→Explain how dew and fog are formed.
(OR)
Write a short note on formation of dew and fog.
(OR)
Write a short note on formation of dew and fog.