Questions

The amplitude of a wave is a measure of the displacement of the wave from its rest position i.e, half the distance from its highest point to its lowest point.

Amplitude is proportional to the energy of a wave.

Cuttlefish or cuttles are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone. Despite their name, cuttlefish are not fish but molluscs.

Jellyfish are soft bodied, free-swimming aquatic animals with a gelatinous umbrella-shaped bell and trailing tentacles.

In economics we study that, if the price of a good increases the demand in its quantity decreases or the demand for its complimentary good increases.

For example, if the rice of a good increased by 5%, the demand in its quantity decreases by 10% approximately.