Waves and Visible Light

Front

What type of mirror is used to focus light to a point?

Back

Concave Mirror

Front

What does the letter 'D' represent in a wave diagram?

Back

Amplitude

Front

Why does a green leaf appear green?

Back

Green light is reflected into our eyes, while all other colors are absorbed.

Front

What does the letter 'B' represent in a wave diagram?

Back

Crest

Front

What type of wave is characterized by oscillations of particles in a medium?

Back

Sound wave

Front

What is the definition of wavelength in the context of waves?

Back

The distance between successive crests or troughs in a wave.

Front

What is the relationship between frequency and wavelength in waves?

Back

Frequency is inversely proportional to wavelength; as frequency increases, wavelength decreases.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (or about 300,000 km/s).

Front

What is the principle of reflection?

Back

When a wave strikes a surface, it bounces back at the same angle as it arrived.

Front

What is the difference between a transverse wave and a longitudinal wave?

Back

In a transverse wave, the oscillation is perpendicular to the direction of wave travel; in a longitudinal wave, the oscillation is parallel to the direction of wave travel.