Question

1. Complete reflection is the special case of refraction at an angle of 180.

True.

False.


2. A resonant frequency is the same as a natural frequency.
True.

False.

3. For a standing wave, the number of segments is an integer equal to the number of half-wavelengths.
True.

False.

4. When a stretched string is oscillating in its third harmonic, the length of the string is 1.5 wavelengths.
True.

False.

5. Each string of a musical instrument vibrates only at its fundamental frequency.
True.

False.

Answer 1

Sorry, I forgot to put my answers in.

1. Complete reflection is the special case of refraction at an angle of 180.

True. <<

False.


2. A resonant frequency is the same as a natural frequency.
True. <<

False.

3. For a standing wave, the number of segments is an integer equal to the number of half-wavelengths.
True.

False. <<

4. When a stretched string is oscillating in its third harmonic, the length of the string is 1.5 wavelengths.
True. <<

False.

5. Each string of a musical instrument vibrates only at its fundamental frequency.
True. <<

False.

Answer 2

all right expect