Short trick: the King property of definite integrals
By Abhishek Jaiswal, Mathematics faculty at Pramana Institute (IIT Roorkee, 18 years teaching JEE) Definite integration is one of the highest-scoring chapters in JEE Main, and many of its questions are built so that no antiderivative is needed. If you try to integrate them directly, you lose ten minutes. One property, which students call the […]
Short trick: hybridisation and shape from the steric number
By Kokil Jain, Chemistry faculty at Pramana Institute (IIT Kanpur, 14 years teaching) Chemical bonding is one of the most frequent Chemistry chapters in JEE Main, and NEET asks a shape or hybridisation question almost every year. Drawing Lewis structures for XeF₄ or I₃⁻ in the exam takes time and invites mistakes. One formula gives […]
Short trick: degrees of freedom, Cv, Cp and γ in 10 seconds
By Kumar Sir, Physics faculty at Pramana Institute (IIT Kanpur, 25 years teaching, ex-Allen) Every year, JEE Main and NEET ask at least one question that needs Cv, Cp or γ for a gas. Most students memorise a table of values, then panic when the question mixes two gases or says "linear triatomic". If you […]
Vectors formula sheet for JEE Main and Class 12
By Abhishek Jaiswal, Mathematics faculty at Pramana Institute (IIT Roorkee, 18 years teaching JEE) Vectors is one of the most reliable chapters in JEE Main: published counts put it at about two questions a year, more than almost any other Maths chapter. The questions are rarely hard. They test whether you pick the right product […]
Current electricity formula sheet for JEE and NEET
By Kumar Sir, Physics faculty at Pramana Institute (IIT Kanpur, 25 years teaching, ex-Allen) Current electricity is one of the highest-weightage Physics chapters in JEE Main, at about two questions a year by published counts. It also appears regularly in NEET and carries a big share of the Class 12 board paper. Most of its […]
Electrochemistry formula sheet for JEE and NEET
By Kokil Jain, Chemistry faculty at Pramana Institute (IIT Kanpur, 14 years teaching) Electrochemistry is a short chapter that pays well: questions on the Nernst equation, cell EMF and conductivity come up almost every year in both JEE Main and NEET. Almost every one of them is solved by picking the right formula and keeping […]
Modern physics formula sheet for JEE and NEET
By Kumar Sir, Physics faculty at Pramana Institute (IIT Kanpur, 25 years teaching, ex-Allen) Modern physics is the most frequent Physics chapter in JEE Main by published 10-year counts, at about 2.4 questions a year. It is also one of the easiest: almost every question is a direct formula with one or two numbers. Learn […]
Why take a scholarship test before you choose coaching: Prashast 2026
By Kokil Jain, Chemistry faculty at Pramana Institute (IIT Kanpur, 14 years teaching) Every October, parents ask me the same thing: "We haven't decided on coaching yet. Is there any point in a scholarship test now?" My answer is yes, and the reason has less to do with the scholarship than most people think. Pramana's […]
Should you take a drop year for JEE or NEET? An honest guide for students and parents
By Kumar Sir, Physics faculty at Pramana Institute (IIT Kanpur, 25 years teaching JEE and NEET) Every year, thousands of students miss their target in JEE or NEET by a margin that feels unfair. A drop year (a full year spent preparing again) can turn that near miss into a seat. It can also become […]
JEE Main 2027: why the last 13 weeks decide your score, and how to use them
By Abhishek Jaiswal, Mathematics faculty at Pramana Institute (IIT Roorkee, 18 years teaching JEE) JEE Main 2027 session 1 is expected from 22 to 30 January 2027, according to the tentative NTA schedule reported in September 2026 (Careers360). Confirm the final dates on jeemain.nta.nic.in when the bulletin is out. From mid-October that leaves about 13 […]