| 1 |
Who is Roy G.Biv?
|
Discoverer of radio waves <br>
nobody, the name is an acronym <br>
first person to be cured of cancer by x-ray exposure <br>
first astronaut t die from exposure to van Allen belt radiation<br>
|
| 2 |
Which of the following EM type have the highest energy levels
|
Radio
Visible<br>
X-rays <br>
Infrared <br>
|
| 3 |
What device make use of EM radiation?
|
SONAR<br>
RADAR
SCUBA <br>
TASER <br>
|
| 4 |
What type of EM radiation gives people tens?
|
Gamma <br>
Infrared <br>
Ultraviolet <br>
Visible <br>
|
| 5 |
Besides X-rays, what other type of EM radiation is used to look inside a human body without cutting it open?
|
Infrared <br>
Radio waves <br>
Gamma rays <br>
None of these <br>
|
| 6 |
What range of electromagnetic radiation is used to cook food in special ovens
|
Gamma <br>
Infrared <br>
Microwave<br>
Ultraviolet <br>
|
| 7 |
What is the range of frequencies in which AM radio operates?
|
88 to 108 MHz<br>
215 to 220 MHz<br>
54 to 88 MHz<br>
550 to 1700 KHz<br>
|
| 8 |
Which of the following mirrors is most suitable for using as a reflector in car headlights?
|
Parabolic <br>
Convex mirror <br>
Concave mirror <br>
Plane mirror <br>
|
| 9 |
A specific mass of pure water is frozen to form completely transparent ice, in the shape of a lens. When force underwater, the lens diverges light, What is the shape of the lens
|
Concave lens <br>
Convex-concave lens <br>
Cylindrical lens <br>
Convex lens <br>
|
| 10 |
Which of the following prisms would be suitable for use in a periscope
|
An isosceles right angles prism <br>
An equilateral prism <br>
An isosceles prism <br>
A prism with the following angles:90 degrees,42 degrees and 48 degrees<br>
|
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