Which of the following waves has the highest frequency? A) ...

[sheilaspns]

Which of the following waves has the highest frequency?
 
  A) visible B) ultraviolet C) sound D) infrared E) radio

Question 2

Jet planes operate by
 
  A) rocket drive i.e., ejecting heated rocket fuel rapidly out the back end of the engine.
  B) ejecting ions out the back end of the engine.
  C) sucking in air, heating it , and allowing it to expand out the back end of the engine.
  D) sucking in air and blowing it rapidly out the back of the engine by means of propeller blades inside the engine.
  E) magic.

[Animal_Goddess]

Answer to Question 1

B

Answer to Question 2

C

[sheilaspns]

Thank you!

[Animal_Goddess]

Always glad to help...