AIEEE Exam Category

A line is drawn through the point (1, 2) to meet the coordinate axes at P and Q such that it forms a triangleOPQ, where O is the origin. if the area of the triangle OPQ is least, then the slope of the line PQ is :

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AIEEE Other Question

The length of the diameter of the circle which touches the x-axis at the point (1, 0) and passes through thepoint (2, 3) is Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4.Then the number of spectral lines in the emission spectra will be :
(1) 2
(2) 3
(3) 5
(4) 6