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Permutation & Combination | JEE Mains 2019 | Lecture 17

FINGER and RING Problems | Permutation and Combination | Important Concepts | JEE Mains | BITSAT

11 AM JEE Mains 2020 - Maths | Permutation & Combination - 30 Days Score Booster Course

The combination of two bar magnets makes 10 oscillations per second in an oscillation magnetometer when like poles are tied together and 2 oscillations per second when unlike poles are tied together. Find the ratio of the magnetic moments of the magnets. Neglect any induced magnetism.

JEE Mains 2020 - Revision | Permutations and Combinations - Quick Revision + Questions | Maths

The opposition party has alleged that the prices of essential commodities are soaring like never "before on the last three" decades.

An electron with a speed of 2.60 xx 10^(8) cm//s enters and electric field of magnitude 1.00 xx 10^(3)N//C , travelling along a field in the direction that retards its motion. (a) How far will the electron travel in the field before stopping momentarily, and (b) how much time will have elapsed ? (c ) If the region containing the electric field is 8.00 mm long (too short for the electroc to stop within it),what fraction of the electrons initial energy will be lost in that region ?

The number of linear permutations of n' things in which there are Plike thing of one kind,g like things of second kinds 'like things of third kind and the rest are different is (n!)/(p!q!r!) The number of ways of arranging the letter of the word ARRANGE so,that.The two R' come together is

Three simple harmonic motions of equal amplitudes A and equal time periods in the same direction combine. The phase of the second motion is 60^@ ahead of the first and the phase of the third motion is 60^@ ahead of the second. Find the amplitude of the resultant motion.