Unit 3 Quiz

A  shows no difference from the originally emitted light.

B  shows a longer wavelength than expected

C  has a lower frequency than expected

D  has a higher energy than expected

A  moving towards us.

B  not moving at all… redshifting light simply looks red.

C  moving away from us.

D  moving in a direction that is neither towards us or away from us, but to the side.

A  Sir Isaac Newton

B  Christiaan Huygens

C  René Descartes

D  Albert Einstein

A  This sounds like a supernatural phenomenon… I don’t think this would have happened. Like, ever.

B  As the light traveled through the double slit, actual waves of water began to flow from the other side onto the screen.

C  The image formed on the screen showed one single bright fringe in the center of the screen.

D  The image formed on the screen showed the same constructive and destructive interference pattern associated with waves interfering with each other.

A  light only behaves like a wave, since the photoelectric effect experiment failed.

B  light behaves like a wave.

C  light can behave like a particle.

D  light only behaves like a particle, and not like a wave.

A  concrete

B  metal

C  glass

D  wood

A  Light collecting isn’t important actually, since the eye piece magnifies the image.

B  Light collecting is important because it helps show the size of the planet or star.

C  Light collecting is important, because it makes faint objects visible.

D  Light collecting isn’t important actually, since different wavelengths refract differently through a lens.

A  A floodlight shining light over a wide area.

B  A magnifying lens focusing light.

C  A telescope focusing light to produce an image.

D  A lens refracting the incoming waves of color at different angles.

A  telescope mirrors are first plane mirrors

B  telescope mirrors are curved

C  telescope mirror glass needn’t be optically perfect

D  all of these

A  the ability to focus an image clearly.

B  the determination of which object to study.

C  the ability to show fine details.

D  its ability to create digital photographs of the objects viewed.

A  large reflectors

B  dioptric telescopes

C  small refractors

D  compound microscopes

A  620 eV

B  15 keV

C  2480 eV

D  1 GeV

A  2.94 x 106 m

B  0.340 m

C  294 cm

D  3.40 x 10-7 m

A  X-ray and IR

B  IR and UV

C  visible and radio

D  X-ray and gamma

A  are transient breaks in the cloud cover.

B  allow only certain wavelengths of light to reach the Earth’s surface.

C  closed to radio light.

D  are local phenomena, similar to the antarctic ozone hole.

A  410, 434, 486 and 656 nanometers

B  0.0004 – 0.0007 meters

C  4 x 10-7 – 7 x 10-7 meters

D  2000 – 1000 kilometers

A  red

B  indigo

C  yellow

D  orange

A  UV light, X-rays, gamma rays

B  X-rays, visible light, IR radiation

C  visible light, gamma rays, radio waves

D  red light, orange light, green light

A  red

B  green

C  yellow

D  indigo

A  False

B  True