Live from the PaperGen platform

Question papers that follow your textbook, in minutes.

Choose the board, class and chapters. PaperGen writes the paper from your syllabus and textbook content, balanced by difficulty and Bloom's level, with a complete answer key.

  • CBSE, ICSE and State Boards
  • Classes 1 to 12
  • PDF and DOCX export

CBSE · Class 10 · Science

Unit Test: Light, Reflection and Refraction

20 marks
  • Remember[2]

    Q1. Define the term 'refraction of light'. State its two laws.

  • Apply[3]

    Q2. A convex lens has a focal length of 20 cm. An object is placed 30 cm away. Find the image distance.

  • Analyse[3]

    Q3. Why does a pencil appear bent when partly dipped in water? Explain with a ray diagram.

Written from NCERT chapter content, with answer key

0

Papers generated

0

Questions written

514

Chapters mapped

792

Topics in the syllabus

3,086

Textbook passages indexed

Built by

Arivan Smart Education Private Limited

How it works

Seven steps from syllabus to print-ready paper

The same guided flow your teachers will use inside the app.

  1. 1

    Board

    CBSE, ICSE or your State Board, so the syllabus and pattern match your school.

  2. 2

    Class

    Pick any class from 1 to 12. Only the subjects offered for that class appear.

  3. 3

    Subject

    Choose the subject; the curriculum tree for it loads instantly.

  4. 4

    Chapters

    Select chapters and topics, and set the weightage each one carries.

  5. 5

    Structure

    Build sections, question types and marks, or start from a saved template.

  6. 6

    Difficulty

    Dial in easy, medium and hard, plus Bloom's taxonomy levels.

  7. 7

    Generate

    Questions are written from your textbook content, with a full answer key.

Features

Everything a school needs to set better papers

From curriculum selection to a finished, marked-up document.

Grounded in real textbooks

A retrieval pipeline over indexed syllabus and textbook content, so every question is written from the chapter it belongs to, not from the model's memory.

Classes 1 to 12, every subject

Primary, middle, secondary and senior secondary: languages, maths, sciences, social science, computer science and economics.

Bloom's taxonomy and difficulty

Set the share of easy, medium and hard questions and the cognitive levels you want. The mix is assigned before generation, so it holds.

Board, state and class selectors

CBSE, ICSE and State Boards across 12 states, with the subject list and curriculum following your choice.

Templates for repeat papers

Start from the CBSE Annual Examination (80 marks) or Unit Test (20 marks) pattern, or save your own section layout and reuse it.

Answer keys with solutions

Every question comes with a step-by-step answer, so marking is faster and more consistent across teachers.

Curriculum

Every class, every subject, mapped to chapters

CBSE curriculum trees for classes 1 to 12. ICSE and State Board offerings follow the same class and subject structure.

Class 1

22 chapters

Primary

EnglishHindiMathematicsEVS

Class 2

24 chapters

Primary

EnglishHindiMathematicsEVS

Class 3

38 chapters

Primary

EnglishHindiMathematicsEVS

Class 4

36 chapters

Primary

EnglishHindiMathematicsEVS

Class 5

35 chapters

Primary

EnglishHindiMathematicsEVS

Class 6

42 chapters

Middle

EnglishHindiMathsScienceSocial ScienceComputer Science

Class 7

52 chapters

Middle

EnglishHindiMathsScienceSocial ScienceComputer Science

Class 8

47 chapters

Middle

EnglishHindiMathsScienceSocial ScienceComputer Science

Class 9

29 chapters

Secondary

EnglishHindiMathsScienceSocial ScienceComputer Science

Class 10

79 chapters

Secondary

EnglishHindiMathsScienceSocial ScienceComputer Science

Class 11

58 chapters

Senior Secondary

PhysicsChemistryBiologyMathsEnglishEconomicsComputer Science

Class 12

52 chapters

Senior Secondary

PhysicsChemistryBiologyMathsEnglishEconomicsComputer Science

Pricing

Simple plans for schools of every size

Demo prices for the launch event.

Free Trial

Try PaperGen on your own syllabus before you decide.

₹0for 14 days

  • 1 teacher account
  • Up to 5 papers during the trial
  • All boards and classes 1 to 12
  • PDF export
  • Answer key included
Start free
Most popular

School

For a school that sets papers every term, across every grade.

₹4,999per month

  • Up to 25 teacher accounts
  • 10 paper generations per hour per teacher
  • 30 question regenerations per hour
  • 20 document uploads per hour
  • PDF and editable DOCX export
  • School name and logo on every paper
  • Saved templates and admin analytics
  • Email support
Get started

Enterprise

For school groups, trusts and districts with their own content.

Customtalk to us

  • Unlimited teacher accounts
  • Your own textbooks and previous papers, indexed privately
  • Custom state-board patterns and templates
  • Higher rate limits and priority generation
  • Onboarding and training for your staff
  • Dedicated support contact
Contact Arivan

FAQ

Questions teachers ask

Where do the questions come from?

PaperGen retrieves passages from the indexed textbook and syllabus content for the chapters you select and asks the model to write questions from that material. Topic, difficulty and marks for each question are fixed first, so the structure of your paper is never left to the model.

Which boards and classes are supported?

CBSE, ICSE and State Boards, for classes 1 to 12. The CBSE curriculum is the most complete today: chapters and topics are mapped for every class and subject we list on the curriculum section.

Can I control the difficulty and the type of questions?

Yes. You set the share of easy, medium and hard questions and the Bloom's taxonomy levels, and you define sections, question types and marks, or start from a CBSE Annual Examination or Unit Test template.

Can I change a question I do not like?

Yes. Regenerate a single question or a whole section, as many times as you need, within the hourly limits for your plan.

What formats can I export?

A print-ready PDF and an editable Word (DOCX) file, with your school name and logo in the header and, if you want it, the answer key.

Is our data private?

Each account's papers, templates and uploads are isolated with row-level security in the database. Administrators can only see what belongs to their own organisation.

Are the prices final?

No. The prices shown are demo prices for the launch event. Contact Arivan for current plans.

Set your next paper in minutes

Create an account, choose a class and chapters, and download a balanced paper with its answer key.