Phys PP2

The distance between two compressions or rarefactions in a longitudinal wave is...

• Wavelength

• Amplitude

• Trough

• Wave Period

What type of quantity is speed?

The shortest wavelength of the EM spectrum is ___.

To deal with long-sightedness, ____ lens should be used.

If the critical angle is 30 degrees, the refractive index is

____ wavelengths lead to more diffraction when passing by an edge

The speed of a wave is 50 m/s and its wavelength is 5m. What is the frequency? (No units)

Which type of signal allows for regeneration?

The acceleration of free fall is equal to ____m/s^2

Ultrasound is above ____ hertz.

• 20000

• 30000

• 40000

• 50000