BUTEX admission questions 2011-12 (Bangladesh University of Textiles)

Physics 1st Paper

1. 1.$\vec{A}.\vec{B} = 0$. What is the angle between $\vec{A}$ and $\vec{B}$?

   1. A.$0^\circ$
   2. B.$90^\circ$
   3. C.$30^\circ$
   4. D.$45^\circ$

   Tap an answer — the first 3 questions need no account

2. 2.$\vec{A} \cdot \vec{B} = 0$ হলে $\vec{A}$ ও $\vec{B}$ এর মধ্যবর্তী কোণ কত?

   1. A.$0^{\circ}$
   2. B.$90^{\circ}$
   3. C.$30^{\circ}$
   4. D.$45^{\circ}$

Higher Math 1st Paper

1. 3.What is the value of $\lim_{x \to 0} \frac{\sin 5x}{\sin 7x}$?

   1. A.$\frac{5}{7}$
   2. B.$\frac{7}{5}$
   3. C.$0$
   4. D.$\frac{25}{7}$

Higher Math 2nd Paper

1. 4.If $\tan 2\theta + \sec \theta = -1, 0 < \theta < 2\pi$, then what is value of $\theta$?

   1. A.$\pi$
   2. B.$\frac{\pi}{2}$
   3. C.$\frac{\pi}{4}$
   4. D.$\frac{3\pi}{2}$
   See the answer

2. 5.The resultant of two forces of magnitude P is $P\sqrt{2 + \sqrt{2}}$. The angle between the resultant and any one of them is-

   1. A.$22\frac{1}{2}^{\circ}$
   2. B.$60^{\circ}$
   3. C.$45^{\circ}$
   4. D.$90^{\circ}$
   See the answer

3. 6.A coconut of mass 2kg is falling downwards from tree. If the air resistance is 7.6N, then what is the acceleration of the coconut?

   1. A.$43.3\text{ms}^{-2}$
   2. B.$12\text{ms}^{-2}$
   3. C.$6\text{ms}^{-2}$
   4. D.$4\text{ms}^{-2}$
   See the answer

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