If the wave is traveling at less than the speed of light
33%
If the angle of incidence is 90o
33%
When the wave has already been refracted somewhere else
Q.2.
Why do transverse waves refract when they enter a more dense medium?
83%
They slow down
17%
They speed up
0%
They are deflected by the more dense particles
0%
The normal attracts them
Q.3.
When drawing a diagram to measure the angle of refraction, a student drew a broken (dashed) line at right angles to the boundary. What is the name of this line and which way would the wave refract?
33%
Normal, towards the normal
0%
Ordinary, away from the ordinary
17%
Standard, towards the standard
50%
Normal, you need more information
Q.4.
When a transverse wave passes through a gap that is about the same width as its wavelength, which of the following is true?
50%
It slows down
25%
It diffracts
25%
Its wavelength is not affected
0%
It can produce an interference pattern on a screen
Q.5.
As transverse seismic waves pass through the Earth, they must travel through several different layers. These layers have different densities. What happens to these waves when they reach a boundary between the layers?
0%
They are blocked
33%
They reflect and refract
50%
They reflect only
17%
They refract only
Q.6.
The distance from any point on one wave to the same point on the next wave is called what?
40%
The amplitude
40%
The frequency
0%
The modulation
20%
The wavelength
Q.7.
Which of these statements about the frequency of a transverse wave is true?
17%
The frequency of a transverse wave is related to wavelength by the wave equation
17%
The frequency of a transverse wave is measured in Hertz (Hz)
33%
The frequency of a transverse wave is the number of waves passing a given point in 1 second
33%
All of the above
Q.8.
Which of the following statements about X-rays is correct?
80%
X-rays cause electric and magnetic fields to vibrate at 90o to the direction they are traveling
0%
X-rays are longitudinal waves
0%
X-rays are transverse waves only after being reflected
20%
X-rays become transverse waves when they are refracted by certain crystals
Q.9.
Which of the following answers places these waves of the electromagnetic spectrum in the correct order of ?Visible lightRadio wavesMicrowavesUltra violetInfrared
67%
1, 2, 3, 4, 5
0%
2, 3, 5, 1, 4
33%
5, 4, 2, 1, 3
0%
3, 2, 4, 5, 1
Q.10.
What is the amplitude of a transverse wave?
60%
The height of the wave from the center line to the crest
40%
The height of the wave from the center line to the trough
0%
The maximum displacement of a wave
0%
What is measured using a voltmeter and ammeter
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