Question

Consider an equilateral triangle of side length 4m made of glass (n=1.5) which lays with one side flat to the x-axis such that the midpoint of the side is at the origin. A laser light traveling parallel with the x-axis enters the triangle with a y-coordinate of 2. Where does the light exit the triangle?

Answer #1

so ray will exit from opposite face i.e. face opposite to that face on which light strikes first

Three charged particles are located at the corners of an
equilateral triangle as shown in the figure below (let q =
2.80 µC, and L = 0.790 m). Calculate the total electric
force on the 7.00-µC charge.
magnitude
N
direction
° (counterclockwise from the
+x axis)
Three charged particles lie in the x y
coordinate plane at the vertices of an equilateral triangle with
side length L.
Positive charge q is at the origin.
A charge of 7.00 µC is...

Consider a regular (symmetric) trapezoid with top length 2
meters, bottom length 5 meters, and height of 1.5 meters. A beam of
light enters parallel to and 1m above the trapezoid. If the
trapezoid is made of glass (n=1.5) where does the light leave?
Indicate the exit location in any way you would like, so long as it
is completely clear where you are referring to.

Three charges are at the corners of an equilateral triangle, as
shown in the figure below. Calculate the electric field at a point
midway between the two charges on the x-axis. (Let
q1 = 2.00 μC,
q2 = 2.00
μC, and
q3 = −3.50 μC.)
Image:
Three charged particles lie in the x
y-coordinate plane at the vertices of an equilateral
triangle with side length 0.500 m.
Positive charge q2 is at the origin.
Positive charge q1 is in the first...

1. Treacherous Triangle Trickery. Consider a charge distribution
consisting of an equilateral triangle with a point charge q fixed
at each of its vertices. Let d be the distance between the center
of the triangle and each vertex, let the triangle’s center be at
the origin, and let one of its vertices lie on the x-axis at the
point x = −d.
1.1. Compute the electric field at the center of the triangle by
explicitly computing the sum of the...

A convex lens is made of glass (n = 1.5) with one flat surface
and the other surface being convex
having a radius of 40 cm.
a. What is the focal length of the lens?
b. How far in front of the lens must a 10 cm high object be placed
such that the image produced is
virtual and 30 cm high?

4. A convex lens is made of glass (n = 1.5) with one flat
surface and the other surface being convex having a radius of 40
cm.
* What is the focal length of the lens?
* How far in front of the lens must a 10 cm high object be
placed such that the image produced is
virtual and 30 cm
high?

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