Which one of the following, on adding to water, will not scatter a beam of light?
The correct answer is A
I. 2p2 - 3p – 2 = 0 II. 2q2 - 11q + 15 = 0
I. 2x2– 25x + 33 = 0
II. 3y2+ 40y + 48 = 0
I. x2 – 18x + 81 = 0
II. y2 – 3y - 28 = 0
I. x2 – 13x + 40 = 0
II. 2y2 – 15y + 13 = 0
I. 6y2 – 23y + 20 = 0
II. 4x2 – 24 x + 35 = 0
I. 15b2+ 26b + 8 = 0
II. 20a2+ 7a - 6 = 0
I. 8/(21x) - 2/7 = 0
II. 16y² - 24y +9 = 0
I. 2y² - 11 y + 15 = 0
II. 2x² + 3x – 14 = 0
I. x² + 11x + 24 = 0
II. y² + 17y + 72 = 0
I. x2 - 11x + 24 = 0
II. y² - 5y + 6 = 0
