## An earthquake causes a tsunami because force from the quake

Frequency is defined as the number of times a specific point (or all indistinguishable points) on a wave travels past a user-specified spot in space over time, which is why it is measured in #”cycles/s”# (“cycles per second”).
If the wavelength decreases while the frequency stays constant (as when entering a different medium with monochromatic light; the light color does not change), the wave’s speed varies as follows:
For example, colored light traveling through water travels more slowly than light traveling through air, while having the same frequency, since its wavelength is shorter in the thicker medium (the index of refraction of water is around #1.33#, whereas the index of refraction of air is almost #1.0#).

## What happens to the frequency of electromagnetic wave if its wavelength increases brainly

Consider Figure 13.7, which depicts a periodic water wave. The wavelength of a wave is the distance between its crests or troughs. The wavelength is also known as the distance traveled by a wave after one complete cycle—or period. The period T of a simple water wave is the amount of time it takes for one complete up-and-down motion. The wave itself moves to the right in the illustration, with a wave velocity of vw. The difference between the resting point and the highest displacement of the wave—either the crest or the trough—is its amplitude X. It’s important to remember that the wave is moving to the right because the disturbance is moving to the right, not because the water is moving to the right; otherwise, the bird will be moving to the right. Instead, the seagull bobs up and down in place as the waves roll under it, covering a distance of two times in one motion. Actual ocean waves, as mentioned in the text feature on surfing, are more complicated than this simplified example.
Graph 13.7 The wavelength of a wave is the distance between adjacent equivalent wave segments. The surface’s up-and-down disturbance propagates parallel to the surface at vw.

### What happens to the frequency of the electromagnetic wave if its wavelength increases

The maximum displacement of the surface above or below its resting position is the amplitude of a wave. The mathematical theory of water wave propagation demonstrates that for waves with a small amplitude relative to their length, the wave profile can be sinusoidal (that is, formed like a sine wave), and that there is a definite relationship between the wavelength and the wave duration, which also governs wave propagation speed. Dispersion is a phenomenon in which longer waves travel faster than shorter waves. Long gravity waves occur when the water depth is less than one-twentieth of the wavelength, and their wavelength is proportional to their duration. The faster they travel, the deeper the water is. Shorter wavelengths fly faster than longer wavelengths in capillary waves.
Waves with a large amplitude relative to their length are difficult to explain mathematically, and their shape is skewed from a sinusoidal shape. The troughs flatten out and the crests sharpen toward a point, forming a conoidal wave. A wave’s limiting height in deeper water is one-seventh of its length. The pointed crests split to form whitecaps as it reaches this height. Long-amplitude waves distort in shallow water because crests travel faster than troughs, resulting in a profile with a steep rise and slow fall. As a result, when waves reach shallower water on a beach, they steepen until they break.

### What causes breakers to crash into the ocean floor?

Refraction of waves and rays is a phenomenon that occurs when waves and rays collide.

### What increases when a wave period decreases. brainly

Light rays refraction

### A sound wave moves at 340 m/s in air. what is the frequency of the wave if the wavelength is 2.0 m?

The density of various materials varies. At the intersection of two transparent materials, light waves can change direction. At such a boundary, refraction is the change in direction of a wave. It’s crucial to be able to draw ray diagrams to show how a wave refracts at a boundary. A ray diagram depicting light refraction at the air-glass interface. Refraction can create optical illusions by making light waves appear to come from a different direction than they actually did.