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Question 1

Which has the higherfrequency:red or blue light? Which has the greaterenergyper photon: red or blue light?

Answer 1

Blue light, blue light

Question 2

How does thedifference in energybetween energy levels relate to theenergy of the photonthat is emitted by a transition between those levels?

Answer 2

The energy of the photon is equal to the difference in energy between the energy levels.

Question 3

How does the intensity at a given wavelength change if you increase the temperature?

Answer 3

The intensity increases

Question 4

How does the wavelength at which the maximum intensity occurs change when you increase the temperature?

Answer 4

The wavelength decreases

Question 5

Which has the greatest energy - a photon of infrared light, of visible light, or of ultraviolet light?

Answer 5

ultraviolet

Question 6

An excited atom is an atom

Answer 6

with one or more displaced electrons

Question 7

A radio wave and a visible light wave differ only in

Answer 7

energy per photon and frequency

Question 8

The energy per photon in ultraviolet light is greater than in

Answer 8

radio waves, visible light, microwaves

Question 9

The highest frequency of visible light is

Answer 9

violet

Question 10

The peak frequency of emitted radiation is directly proportional to _________.

Answer 10

energy

Question 11

How is the peak frequency of emitted light related to the absolute temperature of its incandescent source?

Answer 11

The peak frequency is proportional to the absolute temperature.

Question 12

What is a spectroscope, and what does it accomplish?

Answer 12

A spectroscope displays the spectrum of light as brightness versus wavelength. Useful in chemical analysis.

Question 13

The emission of light has most to do with the behavior of _________.

Answer 13

electrons

Question 14

What does it mean to say an energy state isdiscrete?

Answer 14

The state has a precise energy

Question 15

1- Does increasing the wavelength increase or decrease the spacing between the bright spots in the pattern on the screen?

Answer 15

Increase. It is dependent on wavelength.

Question 16

2- Does increasing the spacing between the slits (the sources) increase or decrease the spacing between the bright spots in the pattern on the wall?

Answer 16

Yes. The closer the sources are to each other, the larger the spacing between the bright spots becomes.

Question 17

energy carried in a beam of red light corresponds to its?

Answer 17

frequency

Question 18

E=hf

Answer 18

description of the energy and frequency of an emitted photon (energy x plank constant)

Question 19

emission spectrum

Answer 19

The distribution of wavelengths in the light from a luminous source.

Question 20

Spectral lines

Answer 20

Forms an image of the slit on the screen using a spectroscope. Each compnent of color is focused at a definite position according to frequency.

Question 21

Incandescence

Answer 21

The frequency of radiation emitted by a hot body is proportional to the temperature of the hot body. F -T The state of glowing while at a high temp caused by electrons bouncing around over dimensions larger than the size of an atom, emitting radiant ene