To develop this problem we will apply the concepts related to the Doppler effect. The frequency of sound perceive by observer changes from source emitting the sound. The frequency received by observer is more than the frequency emitted by the source. The expression to find the frequency received by the person is,
= Frequency of the source
= Speed of sound
= Speed of source
The velocity of the ambulance is
Replacing at the expression to frequency of observer we have,
Therefore the frequency receive by observer is 878Hz
Answer:
Strobe light, computer monitor, tv screen all these are responsible for epilepsy seizures if some one is sensitive towards these lights.
Explanation:
Around 3% of the people are very sensitive towards to the strobe lights. The strobe light explore to the epilepsy and seizure. Certain of the visual seizures trigger to the intensities towards to the seizures. This condition of a person is called photosensitive seizures. This condition is more common among the adolescent and children.
It becomes less frequent as the age going on. It can happen with the light of tv and computer images scrolling. The intense strobe light also responsible for the seizures. If a person facing such type of problem consult to the doctor immediately. Person should avoid extreme environmental light such video games, tv screen computer monitor, strobe light, social media etc.
a rainbow comes from spreading all the white light the (light containing all colors) from the sun.
<span>The colors in the spectrum of an atom , Comes from the energy given up by transitions of electrons from one to another . The only colors are those whose photons have energies equal the same amount of energy changes that electrons in a particular atom can undergo.</span>
Answer:
magnitude of displacement of a sound pressure wave
Explanation:
The time spent in a complete cycle is called the period (T) measured in seconds and the number of cycles per second is called the frequency (f) and is measured in cycles per second or Hetz. The frequency is inverse to the period f = 1 / T. On the other hand, each segment of the rope has a certain<u> amplitude </u>(A). The amplitude is defined as the maximum displacement from the equilibrium position. The frequency is determined by the source, so that if the rope is agitated quickly, the frequency will be higher (high frequency) than if I stir it slowly (low frequency) than if I stir it slowly (low frequency) The amplitude is also determined by the source, so that if the end of the rope rises a lot from the horizontal or equilibrium position the amplitude will be large and vice versa.