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About TopicLamp

TopicLamp gives you free study notes with one page for every topic: the short answer first, then the full explanation, solved examples and practice questions with answers.

You can study by class or exam (Class 11, Class 12, JEE and NEET) or by subject (Physics, Chemistry, Mathematics and Biology). Either way you reach the same topic pages, and each topic has one address, so a correction reaches every reader at once.

What every topic page gives you

  • A quick answer at the top, so you can revise in seconds.
  • The explanation and the formulas, set out step by step.
  • Solved examples that show every step of the working.
  • Common mistakes, so you know what to avoid in the exam.
  • Practice questions with answers that stay hidden until you open them.

Maths is real text, not pictures, so it stays sharp when you zoom in and screen readers can read it out.

How we make our notes

  1. The TopicLamp Editorial Team writes each topic, following the NCERT syllabus.
  2. Topics that follow an NCERT section are matched to the book, chapter, section and pages, and those details are checked against the official PDF.
  3. Each topic is checked by a reviewer or the TopicLamp Review Team. The checks cover accuracy, clarity and source references. Each page names who checked it.
  4. Only an approved page can be published. Our publishing system records who approved and who published each page, and when.

Each topic page names who wrote it and who reviewed or checked it, and shows when its content was last updated. Fixing a typo does not change the “Updated” date; changing the content does.

How pages follow NCERT

Topics that follow an NCERT section name the book, chapter, section and pages, and link the official chapter PDF on ncert.nic.in. Those details are checked against the PDF, and the page shows the date of the last check.

Short quotations from NCERT are marked as quotations and cited with the section and page. TopicLamp does not copy or host NCERT books: to read the textbook, open the official PDF.

Corrections

If a formula, an answer or an explanation looks wrong, tell us: use “Report a mistake on this page” on any topic, or write to hello@topiclamp.com with the page address and what you noticed.

When a fix changes what a page teaches, the page lists the correction with its date under “Sources and review”. Every correction, new topic and syllabus check is also listed in the change log.

Report a mistake

Privacy

Reading pages need no account. We use analytics for visits and selected interactions; the footer lets you reject it. Read our privacy policy for details. “Report a mistake” opens your own e-mail app with a message to hello@topiclamp.com; no form on the site collects anything.

If you choose a colour theme or tick topics as done in a syllabus checklist, your browser keeps that in its local storage on this device. It is not a cookie, and it is never sent to TopicLamp or to anyone else. “Clear ticks” on any syllabus page removes your ticks.

The details are in our privacy policy. The terms and conditions say how you may use and share the notes.

Contact

Write to hello@topiclamp.com.

Authors and reviewers

Independence

TopicLamp is an independent study website. It is not affiliated with or endorsed by NCERT, CBSE, NTA or the National Medical Commission. Official textbooks: ncert.nic.in. Official exam notices: nta.ac.in.