Higher Math 2nd Paper MCQ-Sylhet Board-2017

1. $x^{2}=-y$ is a conic.

Which is the co-ordinates of focus of the conic?

2. What is the resultant of two equal forces $\sqrt{3}$ act at an angle $120^{\circ}$ ?

3. Two forces $P$ and $25 \mathrm{~N}$ acting at a point have a resultant $20 \mathrm{~N}$ which in perpendicular to the line of $\mathrm{P}$ which is the value of $P$ ?

4. Which is the correct figure of this parabola $y^{2}=-4 a x,(a>0)$.

5. What is the probability of its being a prime number or a multiple of 2 ?