1 pt Telescopes LightWavesColorLenses
A well known infrared telescope is ____________.
1 PT Spitzer
A well known x-ray telescope is ________.
2 PT Chandra
A well known radio telescope is ___________
3 PT VLA or Arecibo
A well known visible light telescope is __________
4 PT Hubble
Who was the first to use a telescope in astronomy?
5 PT Galileo
A diffraction grating consists of __________
1 PT Many closely spaced parallel slits
What does a prism do?
2 PT Separates visible lights into several colors
Which electromagnetic wave has the shortest wavelength?
3 PT Gamma rays
Which of the electromagnetic waves has the longest wavelength?
4 PT radio
What type of waves are light waves?
5 PT transverse
What determines the color of an opaque object?
1 PT The light absorbed, reflected and transmitted
Electromagnetic waves with higher frequencies have wavelengths that are ___
2 PT shorter
When a wave bends around an object such as a star, this is called
3 PT diffraction
Light waves cannot pass through what type of materials?
4 PT opaque
When two or more waves are at the same place at the same time, the resulting effect is called
5 PT interference
What are the primary colors of pigments?
1 PT Magenta, cyan, yellow
What are the primary colors of light?
2 PT Red, green, blue
Different colors of light correspond to different light ____
3 PT wavelengths
What color has the longest wavelength?
4 PT red
What color has the shortest wavelength?
5 PT violet
A refracting telescope produces an image using a(n) ____.
1 PT Objective lens
A reflecting telescope produces an image using a(n) ____.
2 PT Concave mirror
An image of a distant object formed by a single converging (convex) lens
3 PT Is upside-down Can be focused on a screen Is real Can be projected on a wall (only one answer is sufficient)
The image your eye receives is upside down or right side up?
4 PT Upside down
An image formed by a single diverging (concave) lens _____
5 PT Is virtual