| 1 |
Thye Water waves obey the laws of |
- A. Reflection
- B. Refraction
- C. Diffraction
- D. All of these
|
| 2 |
To see from submarine the ship at the surface of water , we use: |
- A. Telescope
- B. Microscope
- C. Peri scope
- D. Prism
|
| 3 |
Number of poles in a magnet is: |
- A. One
- B. Two
- C. Three
- D. Unlimited
|
| 4 |
<p class="MsoNormal">The way of doing business by using web is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Sources of entertainment<o:p></o:p></p>
- B. <p class="MsoNormal">Web business<o:p></o:p></p>
- C. <p class="MsoNormal">E-commerce<o:p></o:p></p>
- D. <p class="MsoNormal">E-mail<o:p></o:p></p>
|
| 5 |
<p class="MsoNormal">The data stored in C.D is:<o:p></o:p></p> |
- A. <p class="MsoNormal">680 MB<o:p></o:p></p>
- B. <p class="MsoNormal">650 MB<o:p></o:p></p>
- C. <p class="MsoNormal">700 MB<o:p></o:p></p>
- D. <p class="MsoNormal">750 MB<o:p></o:p></p>
|
| 6 |
The example of magnetic disk is: |
- A. Compact disk
- B. Floppy disk
- C. Audio cassette
- D. Video cassette
|
| 7 |
Transformer which increase voltage is called. |
- A. Step-up transformer
- B. Step down transformer
- C. D.C.Moter
- D. A.C.genrator
|
| 8 |
According to Fleming's left hand rule the direction of magnetic field is indicated by: |
- A. Thumb
- B. Forefinger
- C. Middle finger
- D. Right hand rule
|
| 9 |
What happen to the atomic number of an element which emits one alpha particle? |
- A. Increase by 1
- B. Stays the same
- C. Decrease by 2
- D. Decrease by 1
|
| 10 |
Image formed on a camera is: |
- A. real,invertred, and diminished
- B. virtual, upright and diminshed
- C. virtual, upright and magnified
- D. real, inverted and magnified
|
