Course Content
UPSC Notes Samples
Full Syllabus Covered | 100% as per Official UPSC Syllabus
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1. Art & Culture Sample
Covered under topic 1. Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times.
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1. Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times. (copy)
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2. Modern Indian history from about the middle of the eighteenth century until the present- significant events, personalities, issues. (copy)
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5. History of the world will include events from the 18th century such as Industrial revolution, World wars, Redrawal of national boundaries, Colonization, Decolonization, Political philosophies like Communism, Capitalism, Socialism etc.- their forms and effect on the society.
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7. Role of women and women’s organizations, Population and associated issues, Poverty and developmental issues, Urbanization, their problems and their remedies.
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10.2. Introduction to Maps
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GS2
All topics that need updates are given below.
2. Functions and responsibilities of the Union and the States, issues and challenges pertaining to the federal structure, devolution of powers and finances up to local levels and challenges therein.
All topics that need updates are given below.
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5. Parliament and State Legislatures – structure, functioning, conduct of business, powers & privileges and issues arising out of these.
All topics that need updates are given below.
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6. Structure, organization and functioning of the Executive and the Judiciary; Ministries and Departments of the Government; pressure groups and formal/informal associations and their role in the Polity.
All topics that need updates are given below.
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12. Welfare schemes for Vulnerable Sections of the Population by the Centre and States and the Performance of these schemes; Mechanisms, Laws, Institutions and Bodies constituted for the Protection and Betterment of these Vulnerable Sections.
All topics that need updates are given below.
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GS3
All topics that need updates are given below.
11. Science and Technology- developments and their applications and effects in everyday life.
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GS3: BIODIVERSITY AND ENVIRONMENT
All topics that need updates are given below.
1. Environment
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GS4
All topics that need updates are given below.
GS3: SCIENCE AND TECHNOLOGY
All topics given below
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1. Motion & Measurements
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9. Metals & Non-Metals
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10. Energy
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12. Plant Organisms
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14. Life Processes
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18. Biotechnology
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19. Information Technology
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20. Space Technology
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National & International Current Affairs (CA) 2025
Current affairs of all months are given below
delete UPSC Sample Notes [English]

iv. Graphene

About Graphene

  • Graphene is an example of nanosheet and is an example of two-dimensional nano-material. Graphite (in your pencil) is made of layers and layers each with rings of 6 carbon atoms. If you take one layer from this you have graphene.
  • It is one-atom thick sheet of carbon, thinnest of all material.
  • CNT is just rolled up graphene and fullerene is graphene shaped into sphere. Thus, it is called mother of all carbon-based system.

Properties

  • Inert
  • Mechanical strength
  • It is semi-metallic. (it can change into metal)
  • Can sustain high temperature
  • Electrons move very fast in graphene as if they have no mass. Can be used in ultra-fast transistors. Graphene cannot be used as semiconductor as there is no gap between valence and conducting band.
  • Graphene nanotechnology is common in flexible electronics suitable for wearables.
  • Smart monitors to measure heart rate, body temperature, sweat, saliva etc.
  • Graphene is ideal for photonics and opto-electronics.
  • Could be used in solar cells, LEDs, touch screens, photo-detectors and lasers.
  • Terahertz radiation that use microwaves frequencies penetrates many materials except metals. This is used for biomedical imagery, security, remote sensing and spectroscopy. However, there are reports that terahertz radiation damage skin cells. Graphene with their strength may be used for terahertz radiation antenna.

Graphene

  • If we Inject hydrogen into graphene and it becomes insulator called graphane. This could have variety of applications including:
    • The ability to reduce the scattering of electrons make it a promising material for electronic devices such as transistors and capacitors.
    • It can store hydrogen gas efficiently, making it a potential material for fuel-cell run electric vehicles.
    • Its nanoporous structure can be used to create filters for water purification and desalination plants.
    • With high surface area and ability to interact with gases make it a potential material for gas sensors.
    • It biocompatibility and ability to inhibit bacterial growth make it a potential material for medical implants and drug delivery systems.