4: The image above shows particles in a medium. Which of the following shows the best conditions for a sound wave to travel?
a, b, c, d----My answer is C
12. Which letter shows the type of wave that can be seen by the human eye?
a. b. c. d----my answer is D
15. What does object A do when it acts as a transmitter?
A receives radio signals***
B prevents radio signals
C sends radio signals
D reduces radio signals
16 The electromagnetic wave shown above is made of vibrating
a transverse and longitudinal waves***
b electric and magnetic fields
c gamma and UV rays
d radio infrared rays
17 In the diagram above three beams of light encounter a medium. Light ray A is reflected, while light rays B and C are absorbed. How can the medium be described
19 The light ray is entering the water from the air. How should the light ray respond to the change of medium?
a it will slow down and bend downward
b it will speed up and bend downward***
c it will slow down and bend upward
d it will speed up and bend upward
Thank you for your help in advance... I have attached a picture of the graphs
It would help if you proofread your questions before you posted them.
For several questions, we have no idea what the letters indicate.
The answers are:
Trust me, 100%
If you want to check your answers, @Morgan is right for Connexus. (P.S, it's in another answer link...)