Free PDF Worksheets & Study Material Download
No signup required — instant download for Classes 9, 10, 11 & 12
Browse chapter-wise notes, topic assignments, practice tests and revision worksheets for CBSE Classes 9 to 12 — plus JEE and NEET preparation material. All PDFs are completely free to download with no account required. Subjects covered include Physics, Chemistry, Mathematics and Biology. Use the filters below to browse by class, subject and material type.
56 PDFs found
Semiconductor Electronics Test 2 — CBSE Pattern (90 min, 40 marks)
Second full paper with different questions, same 40-mark / 90-minute blueprint. Includes answer key.
Semiconductor Electronics · Semiconductor Electronics
Semiconductor Electronics Assignment 2 — Challenge + Integrated Problems
Higher-difficulty set with multi-topic integration problems (energy band diagrams, diode I-V characteristics, rectifier waveforms, transistor gain, logic gate truth tables) and full worked answers. Includes an answer key.
Semiconductor Electronics · Semiconductor Electronics
Semiconductor Electronics Test 1 — CBSE Pattern (90 min, 40 marks)
Full board-pattern test: Section A (MCQ/VSA 1M × 10), Section B (2M × 4), Section C (3M × 4), Section D (5M × 2) = 40 marks. Time: 90 minutes. Includes answer key.
Semiconductor Electronics · Semiconductor Electronics
Semiconductor Electronics Assignment 1 — Topic-wise Questions
Covers all five topics: energy bands and doping; p-n junction and diode; rectifiers, LED, photodiode and solar cell; transistors and amplification; and logic gates. Arranged topic by topic.
Semiconductor Electronics · Semiconductor Electronics
Nuclei Test 2 — CBSE Pattern (90 min, 40 marks)
Second full paper with different questions, same 40-mark / 90-minute blueprint. Includes answer key.
Nuclei · Nuclei
Nuclei Test 1 — CBSE Pattern (90 min, 40 marks)
Full board-pattern test: Section A (MCQ/VSA 1M × 10), Section B (2M × 4), Section C (3M × 4), Section D (5M × 2) = 40 marks. Time: 90 minutes. Includes answer key.
Nuclei · Nuclei
Nuclei Assignment 2 — Challenge + Integrated Problems
Higher-difficulty set with multi-topic integration problems (nuclear radius and density, binding energy calculations, decay law and half-life, energy released in fission and fusion) and full worked answers. Includes an answer key.
Nuclei · Nuclei
Nuclei Assignment 1 — Topic-wise Questions
Covers all five topics: nuclear composition and size; mass defect and binding energy; radioactivity and decay laws; half-life and mean life; and nuclear fission and fusion. Arranged topic by topic.
Nuclei · Nuclei
Atoms Test 1 — CBSE Pattern (90 min, 40 marks)
Full board-pattern test: Section A (MCQ/VSA 1M × 10), Section B (2M × 4), Section C (3M × 4), Section D (5M × 2) = 40 marks. Time: 90 minutes. Includes answer key.
Atoms · Atoms
Atoms Test 2 — CBSE Pattern (90 min, 40 marks)
Second full paper with different questions, same 40-mark / 90-minute blueprint. Includes answer key.
Atoms · Atoms
Atoms Assignment 2 — Challenge + Integrated Problems
Higher-difficulty set with multi-topic integration problems (Bohr radii and energies, spectral series wavelengths, excitation and ionisation energies, de Broglie wavelengths) and full worked answers. Includes an answer key.
Atoms · Atoms
Atoms Assignment 1 — Topic-wise Questions
Covers all five topics: atomic models (Thomson to Rutherford); Bohr's model of the hydrogen atom; hydrogen line spectra; energy of the electron and ionisation; and the de Broglie wavelength of the electron. Arranged topic by topic.
Atoms · Atoms
Class 9 & 10 — Free CBSE PDFs
Download free worksheets for CBSE Class 9 and Class 10 covering all major topics — real numbers, triangles, acids and bases, matter, motion, and more. Each PDF is exam-ready with solved examples and practice questions aligned to the latest CBSE pattern. No registration needed.
Browse Class 9 PDFs →Class 11 & 12 — Notes & Assignments PDF
Senior secondary students can download free Physics, Chemistry and Maths notes PDF for Class 11 and Class 12 — covering topics from kinematics and thermodynamics to organic chemistry, calculus and probability. Ideal for CBSE boards, JEE Main and NEET.
Browse Class 11 PDFs →Free Practice Tests & Mock Papers PDF
Download free CBSE and JEE practice test papers as PDFs — topic-wise tests and full-length mock papers written by experienced faculty. Check your preparation, identify weak areas and track improvement. All test papers are free to download and print.
Browse Practice Tests →Frequently Asked Questions — Free PDF Worksheet Download
Do I need to sign up to download the PDF worksheets?
No. Every PDF on this page is available as a free, instant download with no account or signup required. Click the download icon on any card and the PDF opens immediately.
Are these worksheets free for CBSE students?
Yes — completely free. All notes, assignments and practice tests are created by the teachers at Narayan Gurukul Academy and shared at no charge for CBSE Classes 9 to 12.
Which subjects are covered?
We currently publish PDFs for Physics, Chemistry, Mathematics and Biology, including chapter-wise notes, topic assignments and full mock-test papers aligned to CBSE, JEE and NEET syllabi.
How often is new material added?
New worksheets and notes are uploaded every few weeks as the academic year progresses. Use the Class and Subject filters to find the latest additions for your course.
Can I print the downloaded worksheets?
Yes. All PDFs are printer-friendly. Open the file in any PDF reader and print directly — no watermarks or restrictions.