A - Diffraction
B
D
C
After discovering these electromagnetic waves, this scientist wrote "I do not think that the wireless waves I have discovered will have any practical application.”
Name the scientist and the waves he discovered.
Heinrich Hertz
Radio Waves
B
C
B
A
B
B
C
B
C
D
A
B
C
A
B
Calculate the difference in speed between x-rays and gamma rays.
There is no difference!!
all EM waves travel 3x108 m/s
Explain why the ray does not leave the fibre at Y.
Knowing the approximate speed of sound in water, calculate the wavelength
43 +-1
List the EMS in order from lowest frequency to highest frequency.
Explain why someone is near-sighted. Suggest the proper lens to correct the vision impairment and why.
Explain ALL of the differences between electromagnetic waves and sound waves
Transverse
speed
vacuum