Section | Number of questions |
English reading comprehension | 8 |
English grammar and correction | 12 |
Basic maths | 20 |
Total | 40 |
Directions: In this section, you will read one passage. The passage is followed by a number of questions about it. You are to choose the one best answer, A, B, C, or D, for each question
The electromagnetic wave model of light (as formulated by Maxwell) was one of the great triumphs of nineteenth-century science. In 1887, when Heinrich Hertz actually made invisible electromagnetic waves (what today are called radio waves) on one side of a room and detected them on the other side, it ushered in a new era that led to the modern age of telecommunications. His experiment ultimately led to the technologies of television, cell phones, and today’s wireless networks around the globe.
However, by the beginning of the twentieth century, more sophisticated experiments had revealed that light behaves in certain ways that cannot be explained by the wave model. Reluctantly, physicists had to accept that sometimes light behaves more like a “particle”—or at least a self-contained packet of energy—than a wave. We call such a packet of electromagnetic energy a photon.
Directions: In the following section, you are to choose the one best answer, A, B, C, or D, for each question.
(A) I asked Javed had he passed | (C) I asked Javed if he had passed |
(B) I asked Javed if me had passed | (D) I asked Javed that had passed |
নির্দেশাবলিঃ প্রতিটি প্রশ্নের জন্য A , B , C ও D এর মধ্য হতে সর্বোত্তম সঠিক উত্তরটি বাছাই করে নির্ধারিত উত্তরপত্রে সংশ্লিষ্ট প্রশ্নের ক্রমিক নম্বরের বিপরীতে প্রদত্ত বৃত্তগুলোর মধ্যে বাছাইকৃত উত্তরের অক্ষর বিশিষ্ট বৃত্তটি ভরাট করতে হবে |