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India's AI-powered daily revision & practice platform for Class 8–12

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Revise concepts, practise every chapter with quizzes that match your level, and get ready for CBSE Boards, JEE, NEET & MHT-CET — all in one place, Classes 8–12.

Bithindra Biswas, founder of XamBaazFounded by Bithindra BiswasIIM Ahmedabad · IIT Bombay faculty · 20+ yrs
Free to start — no credit card Key concepts in every chapter Adaptive quizzes that match your level Negative marking, like the real exam
Class 11 · Physics · Kinematics08:42
Question 3 / 10

A particle moves with v = 4t² m/s. Its displacement after 3 seconds is:

A12 m
B36 m
C48 m
D64 m
Class 11 · Physics · Kinematics✓ Correct +4

A particle moves with v = 4t² m/s. Its displacement after 3 seconds is:

B36 mYour answer ✓
Why

Displacement = ∫₀³ 4t² dt = [4t³/3]₀³ = 4·27/3 = 36 m. Integrate velocity over time — don't multiply v by t when v isn't constant.

+4 right−1 wrong0 skipped
Your analytics · Physics72% avg

Accuracy by chapter

Laws of Motion88%
Kinematics72%
Gravitation54%
Thermodynamics38%
Revise Thermodynamics next — your weakest chapter.
Your progressLevel 7
12
day streak 🔥
2,480
XP earned
Physics mastery★★★★☆

Clear 1 more chapter to unlock the Subject Mastery Test.

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Entrance mock · unlocked+4/−1
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JEE Main Mock
Class 11 · Physics · full-syllabus
15
Questions
30 min
Time
+4/−1
Marking
🔓Unlocked — you've cleared every Physics chapter.
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Exam-pattern practice for every CBSE & HSC chapter
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Around 6 quizzes on a typical chapter — Easy, Medium and Hard, none repeating — plus 17 Subject Mastery Tests (three full papers each) and 66 full-length mock papers.

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One platform for school exams and the entrance test that follows.

A student practising on XamBaaz
  • Latest CBSE & HSC syllabus — every chapter, updated.
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Builds real exam confidence

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Practice that never goes stale

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Stuck on a doubt? Ask Genie.

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CBSE & HSC subjects · Class 8–12

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Deep Class 11–12 board prep for CBSE & HSC, plus full-length IIT JEE, MHT-CET & NEET mock papers that decide your rank.

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Class 8–12

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Bithindra Biswas — Founder & CEO of XamBaaz
From the founder

“Every student deserves the same top-tier prep the toppers use — whatever their pin code.”

Bithindra BiswasIIM AhmedabadIIT Bombay faculty20+ yrs experience
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Pricing

One simple price. The whole year.

Start free — no credit card. When you're ready, unlock the full year at a special launch price. No hidden paywalls, no auto-renewal, no spam.

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₹2,999₹999/ year67% off

Special launch price · ≈ ₹2.74/day · one-time, no auto-renewal

  • Full access to your class (any one of 8–12)
  • Every CBSE & HSC chapter — Easy, Medium & Hard quizzes
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Sign in & buy — ₹999/yearor just try free first →

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All classes 8–12
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Special launch price · all classes 8–12 · for teachers, tutors & coaching

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Begin tonight

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