Physics, Chemistry and Mathematics — MCQ and Numerical practice in the JEE Main Paper 1 pattern, and JEE Advanced-style practice papers, with a detailed analysis after every test.
A full-syllabus Mock Test is 75 questions, 300 marks and 180 minutes, with +4 for a correct answer and -1 for a wrong one. Numerical questions carry no options — the student types the answer. There is no sectional timing, so students move between subjects freely. Results show Percentile and overall Rank once 20 or more students have taken the same test. Questions and papers are in English.
54 questions, 180 marks, 180 minutes — the size of a recent JEE Advanced Paper 1. It comes with the JEE package at no extra cost. JEE Advanced changes its pattern every year, so this is Paper 1-style practice, not the official pattern; multiple-correct and matching question types are not included yet.
In a metre bridge (wire length 1 m), the left gap contains a combination of Y and Y/2, and the right gap a combination of X and X/2, such that the resistance of the left gap to that of the right gap is in the ratio 2 : 1. If the galvanometer shows zero current, what is the balancing length l₁ measured from the left end?
Chapter: Current Electricity · Difficulty: Medium
