Which materials can be used to make fiber optic strands?
The diagram shows parts of a wave.Which is shown by the letter X?

Jin has four colorful glass bottles on his windowsill. One is red, one is violet, one is green, and one is yellow. The light that passes through which bottle has the lowest frequency?
An object is placed in front of a plane mirror. The reflected image of the object will be a
Which correctly lists the four parts of the eye that allow light to pass through them?
Ingrid says that a red ball of clay appears red because the clay reflects red wavelengths. Simon says that the clay appears red because it allows red wavelengths to pass through it.Which statement best explains who is correct?
A doctor uses an instrument(s) that emits light and allows the doctor to view the inside of a patient’s intestine.
Which color of white light bends the least when it is refracted by a prism?
The lens in the eyepiece of a reflecting telescope breaks. How will this most affect the function of the telescope?
Leon sees a poster that shows a lake in front of a snow-capped mountain. The mountain appears upside down in the lake.
Which part of the electromagnetic spectrum is nearest to X-rays?
Donna shines a flashlight and a laser pointer on a sheet of paper. She holds each device at an equal distance from the paper. How does the light hitting the paper from each device appear different?
In a farsighted eye, where does the image formed by the lens fall?
The diagram below illustrates the law of reflection. Which is the angle of reflection?

Ben created the table below to identify the roles of different parts of the eye.

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