| 1 |
What is the voltage across a 6Ω resistor when 3 A of current passes through it? |
- A. 2 V
- B. 9 V
- C. 18 V
- D. 36 V
|
| 2 |
<p class="MsoNormal">The presence of fish by the other fish can be detected by:<o:p></o:p></p> |
- A. <p class="MsoNormal">Magnetic field<o:p></o:p></p>
- B. <p class="MsoNormal">Electric field<o:p></o:p></p>
- C. <p class="MsoNormal">Gravitational field<o:p></o:p></p>
- D. <p class="MsoNormal">All of above<o:p></o:p></p>
|
| 3 |
Which is an example of a longitudinal wave? |
- A. Sound wave
- B. Light wave
- C. Radio wave
- D. Water wave
|
| 4 |
An example of input device of computer is. |
- A. Key board
- B. Printer
- C. Monitor
- D. RAM
|
| 5 |
<p class="MsoNormal">Old people cannot hear sound above than:<o:p></o:p></p> |
- A. <p class="MsoNormal">1000 Hz<o:p></o:p></p>
- B. <p class="MsoNormal">15000 Hz<o:p></o:p></p>
- C. <p class="MsoNormal">20000 Hz<o:p></o:p></p>
|
| 6 |
<p class="MsoNormal">In a vacuum all electromagnetic waves have the same:<o:p></o:p></p> |
- A. <p class="MsoNormal">Speed<o:p></o:p></p>
- B. frequency
- C. amplitude
- D. wavelength
|
| 7 |
Snell' law is: |
- A. n = sin<x/sin <r
- B. n=sin <i/sin<r
- C. n = sin <r/sin<i
- D. <i/<r
|
| 8 |
<p class="MsoNormal">The amount of current that can be painful is:<o:p></o:p></p> |
- A. <p class="MsoNormal">0.005A<o:p></o:p></p>
- B. <p class="MsoNormal">0.001A<o:p></o:p></p>
- C. <p class="MsoNormal">1A<o:p></o:p></p>
- D. <p class="MsoNormal">2A<o:p></o:p></p>
|
| 9 |
Who discovered Electromagnetic induction? |
- A. Michael Faraday
- B. Flemiing
- C. Ohm
- D. Coulomb
|
| 10 |
Which radiations are free of effect of electric and magnetic field? |
- A. Alpha
- B. Beta
- C. Gamma
- D. Alpha and beta
|
