Sequence and series Class 11th || NDA || IIT JEE || Air force X || Navy #shorts #shorttricks1m

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JEE Mains Physics Question || Newtons Law of Motion Class 11 IIT JEE

Between 1 and 31, m numbers have been inserted in such a way that the resulting sequence is an A.P. and the ratio of 7th and (m-1)th numbers is 5 : 9. Find the value of m.

Two charges of 10 C and - 15 C are separated in air by 1m. The ratio of force exerted by one on the other is