Em Spectrum
What is the speed of light in a vaccum?
What is c=3.0x108 m/s
What is the wave speed formula, and find the speed of a wave that travels with a frequency of 250 Hz and has a wavelength of 1.2 meters.
What is 300 m/s
Which term refers to light bouncing off a surface?
What is reflection?
What is snell's law used for?
What is refraction?
A flat mirror has a focal length of infinity. If an object is placed 5 cm from the mirror, how far does the reflection of the object appear to be?
What is 5 cm?
Which Em wave has the highest frequency and energy?
What is Gamma rays
How are shadows formed?
What is when an opaque object blocks light?
Which term is known as light bending as it passes from one medium to another?
What is refraction?
What is the equation for Snell's Law in both forms?
What is n1sin01=n2sin02
What type of mirror is often used for security purposes in stores or in parking lots?
What is convex mirrors.
Identify which part of the electromagnetic spectrum is used for each:
a) Medical imaging of bones
b) TV remote controls
c) Cell phone communication
What is
a) x-rays
b) infrared
c) radio waves
Draw a diagram showing the law of reflection.
What is
Which term refers to light energy taken in by a material.
A ray of light travels from air into an unknown transparent material. The angle of incidence is 40°, and the angle of refraction is 25°.
Assuming the index of refraction of air is 1.00, what is the index of refraction of the material?
What is 1.52
If an object is placed beyond the focal point of a concave mirror, is the image:?
What is real and inverted.
How are frequency and energy related in the electromagnetic spectrum?
What is directly related? As frequency increases, energy increases.
What is the exception to the law of reflection?
What the surface of reflection is irregular?
What is the difference between transparent, translucent, and opaque?
What is light that passes all the way through, some light passes through, and no light passes through.
A ray of light travels from glass into water. The index of refraction of glass is 1.50, and the angle of incidence in the glass is 35°. The angle of refraction in the water is 48°.
What is the index of refraction of the water?
What is 1.16
For a convex mirror, the image formed is always
List the Em Spectrum from longest wavelength to shortest wavelength?
What is Radio waves, microwaves, infrared, visible light, UV rays, x-rays, gamma rays.
Light travels fastest in which medium...
water, air, glass, diamond, vacuum, oil.
What is vaccum?
The bending of light around edges or through small openings is known as?
What is diffraction?
A ray of light travels from water (index of refraction 1.33) into glass (index of refraction 1.50). The angle of refraction in the glass is 30°.
What is the angle of incidence in the water?
What is 34.3 degrees.
What mirrors reflect light and lenses refract light.