A standing wave can occur only at specific frequencies that are called natural frequencies.
If you speak about seen light, the only way to make transparent glass not light transfering is coloring it with some colors that negate (filter) some other colors
a mixture of frequencies.
There must be genetic variation, the variation must be heritable, and there must be differential reproduction (due to competition).
Variations within a population. Variations mean traits that only certain individuals have that give the individual a greater or lesser chance of reproducing.
A new species can occur when;1. Change in allele frequencies-genetic drift can result in loss of alleles in a population-one allele becomes the only variation, becomes "fixed"2. Gene flow due to migration-movement of alleles into or out of a population3. Non-random mating-individuals have preferred mates rather than random4. Mutations-a change in DNA can be beneficial, neutral, or harmful5. Natural Selection-best adapted, more likely to survive
Standing waves on strings only happen at certain frequencies because the length of the string must be an exact multiple of half-wavelengths for resonance to occur. This condition allows the waves to interfere constructively, forming a stable pattern of nodes and antinodes. Frequencies that do not meet this requirement will not result in standing waves.
No. They can occur in the laboratory also.
As people age, their ability to hear high frequencies diminishes. This is due to natural changes in the inner ear that occur with age, such as the loss of hair cells that are responsible for detecting high-pitched sounds. Younger individuals can typically hear frequencies up to around 20,000 Hz, while older adults may only be able to hear frequencies up to around 12,000-14,000 Hz.
If you speak about seen light, the only way to make transparent glass not light transfering is coloring it with some colors that negate (filter) some other colors
If you speak about seen light, the only way to make transparent glass not light transfering is coloring it with some colors that negate (filter) some other colors
a mixture of frequencies.
there are an infinite range of frequencies limited only by the mechanical limitations of the medium creating and transferring it.
No. Many physical processes occur by artificial means. Boiling water on a stove or freezing it in a freezer is one common example.
Filter is an electronic device which passes specific frequency and attenuates all other.There are 4 types of filters: 1) Highpass - passes only high frequencies 2)Lowpass - passes only low frequencies 3)bandpass-passes only specefic band of frequencies 4)band reject-passes all frequencies excepting desired band
Yes, because propagation speeds may vary. Beware the conventional error in considering only 'frequency' which is a metaphysical conception requiring 'time'. Much confusion arises from this error. The proper 'real' scalar directly producing interference effects is 'WAVELENGTH'.
only one, we have 5MHz
only in their frequencies.