Draw a diagram to show what happens to plane waves when they strike a flat reflector placed at 45° to their direction of travel.
1 answer:
Since the angle of incidence is 45° using the law of reflection we can conclude the reflective ray will also make an angle equal to the angle of incidence i.e. 45° with the normal.
<h3>What are the three laws of reflection?</h3>1)The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal.
2)The incident ray, the normal and the reflected ray are all in the same plane.
3) Incident ray and refracted ray are on different sides of the normal.
Given:
Light rays strike at an angle of 45° to the plane.
Using the law of reflection we can easily draw the reflective wave.
Important terms:
Angle of incidence - it is the angle at which the light way strikes the plane mirror.
Angle of reflection- it is the angle at which the light way is reflected back by the plane mirror.
Now since the angle of incidence is 45° using the law of reflection we can conclude the reflective ray will also make 45° with the normal.
Hence the angle of incidence is 45° and also the angle of reflection is equal to the angle of incidence i.e.45°.
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Answer:
El neumático soportará una presión de 1.7 atm.
Explanation:
Podemos encontrar la presión final del neumático usando la ecuación del gas ideal:
En donde:
P: es la presión
V: es el volumen
n: es el número de moles del gas
R: es la constante de gases ideales
T: es la temperatura
Cuando el neumático soporta la presión inicial tenemos:
P₁ = 1.5 atm
T₁ = 300 K
(1)
La presión cuando T = 67 °C es:
(2)
Dado que V₁ = V₂ (el volumen del neumático no cambia), al introducir la ecuación (1) en la ecuación (2) podemos encontrar la presión final:
Por lo tanto, si en el transcurso de un viaje las ruedas alcanzan una temperatura de 67 ºC, el neumático soportará una presión de 1.7 atm.
Espero que te sea de utilidad!
For a standing wave on a string, the wavelength is equal to twice the length of the string:
In our problem, L=50.0 cm=0.50 m, therefore the wavelength of the wave is
And the speed of the wave is given by the product between the frequency and the wavelength of the wave:
In our problem, L=50.0 cm=0.50 m, therefore the wavelength of the wave is
And the speed of the wave is given by the product between the frequency and the wavelength of the wave: