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Why is the ray of light parallel to the principal axis passes through the focus?
Wiki User
∙ 14y ago
Well this only occurs if the lens is parabolic. It is just a fundamental feature of a parabola to reflected an incident ray parallel to the principal axis through the focal point. That is why lenses etc are parabolic. I dont know if this answers your question (it probably doesnt) but oh well...
Wiki User
∙ 14y ago
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How does light reflect off a convex and concave?
A parallel light source will reflect off a concave mirror and go through a point inside the curve called the focus. Reflecting from a convex mirror will cause all light to bounce off in a straight line away from a focus point behind the mirror.
Why the curved reflecting dish is always concave not convex?
A concave dish, more specifically parabolic or spherical, will focus any parallel rays toward the focal point of the curve. This allows the fish to collect a signal from a large area and focus it into a small area (electronic sensor)
What is the focus and directrix of y equals 8x squared?
Need set of point parabola passes through.X = 1Y = 8----------------(1, 8)For focus,X2 = 4pYinsert values, solve for p(1)2 = 4p(8)= 1/32=======focus- 1/32=======directrix( long time since I have done this. Formula is correct, check my math )
Why the parabolic antenna has parabola shape?
Parallel rays, such as those from a very distance source, are focussed by a parabolic antenna so that they all meet at the focus of the parabola. This results in a stronger signal.
What is the line segment perpendicular to the axis of the parabola and passing through the focus?
It does not have a specific name.
When rays parallel to the principal axis of a concave mirror are reflected the pass though?
When rays parallel to the principal axis of a concave mirror are reflected, they converge at the focal point.
Describe the path of the light ray that hits a mirror after passing through its focus?
It is reflected back parallel to the principal axis. (apex)
What is the path of the ray that approaches a mirror parallel to the principal axis?
It reflects out through the focus.
Rays traveling parallel to the principal axis of a concave mirror will reflect out through the mirror's focus.?
true
A ray of light traveling parallel to the principal axis of a concave mirror will be reflected out through the mirror's?
focus
Describe a path of the light ray that hits a mirror after passing through its focus?
It is reflected back parallel to the principal axis. (apex)
What happens when a light ray passes through a focal point and then passes through a covex mirror?
When a light ray passes through a focal point of a convex mirror, it will reflect parallel to the principal axis. This is because the reflected ray follows the law of reflection, where the incident angle is equal to the reflection angle.
A ray of light traveling parallel to the principal axis of a concave mirror will be reflected out through the mirrors?
A ray of light traveling parallel to the principal axis of a concave mirror will be reflected and pass through the focal point of the mirror. This is known as the property of a concave mirror called "reflection through the focus."
Describe a path of the light of ray that hits a mirror after passing through its focus?
It is reflected back parallel to the principal axis. (apex)
The blank length of lens is the distance from the center of the lens to its principle focus is what?
The blank you are referring to is the focal length of the lens. It is the distance from the center of the lens to its principal focus, where parallel rays of light converge after passing through the lens.
What kind of mirror do you have if reflected rays of light pass through the principle focus when light hits a mirror parallel to the principle axis?
The mirror is a concave mirror. This behavior is a property of concave mirrors, where parallel rays of light are reflected and converge at the principal focus after reflection.
What is meant by focus of a concave mirror?
The focus of a concave mirror is the point where parallel rays of light converge after reflecting off the mirror. It is located along the principal axis, halfway between the vertex and the center of curvature of the mirror. Rays of light that are parallel to the principal axis will reflect and converge at the focus.
