Question

I have several questions
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

Answer 1

I have several questions 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 a transparent b translucent***** c opaque d clear 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