Unit 3 Quiz

A  has a lower frequency than expected

B  shows no difference from the originally emitted light.

C  shows a longer wavelength than expected

D  has a higher energy than expected

A  moving away from us.

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

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

D  moving towards us.

A  René Descartes

B  Sir Isaac Newton

C  Christiaan Huygens

D  Albert Einstein

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

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

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

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

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

B  light can behave like a particle.

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

D  light behaves like a wave.

A  concrete

B  metal

C  glass

D  wood

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

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

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

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

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

B  A telescope focusing light to produce an image.

C  A floodlight shining light over a wide area.

D  A magnifying lens focusing light.

A  all of these

B  telescope mirrors are first plane mirrors

C  telescope mirror glass needn’t be optically perfect

D  telescope mirrors are curved

A  the ability to focus an image clearly.

B  the ability to show fine details.

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

D  the determination of which object to study.

A  large reflectors

B  small refractors

C  compound microscopes

D  dioptric telescopes

A  1 GeV

B  15 keV

C  2480 eV

D  620 eV

A  0.340 m

B  2.94 x 106 m

C  3.40 x 10-7 m

D  294 cm

A  X-ray and IR

B  X-ray and gamma

C  visible and radio

D  IR and UV

A  are transient breaks in the cloud cover.

B  closed to radio light.

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

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

A  4 x 10-7 – 7 x 10-7 meters

B  410, 434, 486 and 656 nanometers

C  2000 – 1000 kilometers

D  0.0004 – 0.0007 meters

A  red

B  orange

C  indigo

D  yellow

A  red light, orange light, green light

B  UV light, X-rays, gamma rays

C  visible light, gamma rays, radio waves

D  X-rays, visible light, IR radiation

A  indigo

B  yellow

C  green

D  red

A  False

B  True