The higher the pitch or frequency (number of pressure change cycles per second) of the sound, the faster the eardrum vibrates (Goldstein, 2010). The level of air pressure in each wave is directly related to its amplitude. Pitch refers to the quality of a tone; it can either be high-pitched or low-pitched. In order to quantify sound, both amplitude and frequency must be considered. The ear is divided into three parts: the outer, middle and inner ear.
Frequency Hopping Spread Spectrum (FHSS) * What is it? How does it work? What issues are addressed? Why is it important? FHSS is when a signal is transmitted across several channels.
A phrase of a waveform is the point where the wave is in its cycle. 2. What happens when two identical waves are in-phase? When two identical waves are in-phrase they build on one another, making higher amplitude. 3.
79. ANS: Yes, speed and direction will change. 80. ANS: Both cause waves to bend. Refraction occurs when waves change speed when changing media.
On the base of the frontal lobe it overlies the anterior perforated substance through which the striate arteries enter the interior of the brain. On the temporal lobe the olfactory cortex covers the rostral portion of the parahippocampal gyrus including a medial bulge known as the uncus or uncinate gyrus. From the olfactory cortex, olfactory information is relayed via the mediodorsal nucleus of the thalamus to the insular and orbitofrontal cortex. The insular cortex, which is buried in the depths of the Sylvian fissure, also
After sound passes through the oval window it reaches the inner ear, which is the innermost part of the ear. It consists of the fluid-filled cochlea, basilar membrane, organ of corti, tectorial membrane and hair cells. The cochlea consists of vestibular, middle and tympanic canals. After the sound reaches the cochlea, oscillation causes the fluid vibration, which in turn vibrates the basilar membrane, which
Together with the lens, the cornea refracts light and helps the eye to focus. The cornea gives a larger contribution to the total refraction than the lens. The curvature of the cornea is fixed while that of the lens is changeable. In your cow’s eye, the cornea may be cloudy. c. You may be able to look through the cornea and see the iris, the colored part of the eye, and the pupil, the dark oval in the middle of the iris.
They are Amplitude modulation (AM), Frequency Modulation (FM), and Phase Modulation (PM). These methods are based on altering one of the carrier’s characteristics: amplitude, frequency, or phase. In AM, FM and PM modulations each carrier changes in accordance with the information signal’s amplitude variations. When it comes to advantages and disadvantages there are performance factors to consider. They are spectral efficiency which identifies a communication system’s ability to achieve a given data rate within a given bandwidth.
This distance depends on the angle of the incident light and the thickness of the film. White light is made up of different colors, corresponding to specific wavelengths. As the film thickness changes, the extra distance the ray must travel changes. Interference is constructive when the total extra distance matches a specific wavelength of light, and is destructive when it is half a wavelength. So if white light shines on a bubble, the film reflects light of a specific hue, and this hue changes with the film’s thickness.
We will be using the seven colours red, orange, yellow, green, blue, indigo and violet. The dependent variable (the one we measure) is the angle of refraction or refractive index. We will measure this (the angle of refraction) from the normal line using a protractor. First we will shine a light using the ray box. We will use coloured filters (first red and then continue in rainbow order) to gain coloured light.