Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

ciannas optics

optics test flashcards

QuestionAnswer
what is the longest wavelength? radio waves
what is the shortest wavelength? gamma rays
primary colours? red, blue, green
secondary colours? red+green=yellow, green+blue=cyan, blue+red=magenta
complementary colours? red+cyan, green+magenta, blue+yellow
difference between transparent, translucent and opaque? transparent; allows wavelengths to pass through. translucent; allows some light to pass through. opaque; does not allow light to pass through
)( is ? and () is ? )( is concave/diverging and () is convex/converging.
in a converging lens, where is F? where is F in a diverging lens? F is on the opposite side of the object in a converging lens, and F is on the same side of the object in a diverging lens.
what is 0.000 012 3 in scientific notation? 1.23 x 10^ -5
what is the formula for index of refraction? n=c/v
in reflection, and of incidence =? angle of incidence = angle of refraction
if angle of incidence is 0, what is the angle of refraction? 0
why can we still see the sun when its setting? its rays refract through the atmosphere and bend towards the surface on the Earth.
why does a diamond sparkle? light entering a diamond will experience TIR multiple times before it exists the diamond
how can you determine the critical angle? set angle of refraction (theta r) to 90 degrees
if an image is formed on the opposite side of the object, what type of image is it? real image
if an image is formed on the same side as the object, what type of image is it? virtual image
for thin lens equations, when is f positive and when is it negative? f is positive for a converging lens, and f is negative for a diverging lens
what cells allow us to see at night? rod cells
what happens to black and white objects? black; absorbs all colours. white; reflects all colours
what rays can penetrate through human tissues? gamma rays
what causes a rainbow to form? dispersion within droplets of water
Created by: ciannawilliams