Final Exam

Question 1

do electrons move in circular orbits with a non-fixed radii?

Answer 1

no

Question 2

T/F: Radiation occurs when electrons jump from a lower to higher energy state

Answer 2

F

Question 3

T/F: Radiation occurs when electrons jump from a higher to lower energy state

Answer 3

true

Question 4

energy released from radiation is released as what

Answer 4

photon

Question 5

is wavelength inversely proportional to mass

Answer 5

yes

Question 6

the speed of proton A is larger than the speed of proton B. Which has the longer wavelength

Answer 6

proton B

Question 7

an electron and a proton have the same speed. which has the longer wavelength

Answer 7

electron

Question 8

an electron and a proton have the same momentum. Which has the longer wavelength

Answer 8

both are the same

Question 9

can electrons act like particles and other times as waves?

Answer 9

yes

Question 10

is an electron ejected if f<f(c)?

Answer 10

no

Question 11

shorter wavelength = ___ frequency

Answer 11

higher

Question 12

are electrons ejected if f > f(C)?

Answer 12

yes

Question 13

are electrons ejected if lambda is greater than lambda (c)?

Answer 13

yes

Question 14

higher frequency = __ energy/photon

Answer 14

higher

Question 15

higher intensity with no frequency change, the energy/ photon will ___

Answer 15

stay the same

Question 16

higher intensity will ___ # of photons

Answer 16

increase

Question 17

if more than the minimum work function of a metal is supplied, the left over energy becomes ___ energy

Answer 17

kinetic

Question 18

smallest binding energy = ___ Kinetic energy

Answer 18

maximum

Question 19

electrons create current in the circuit which is registered in the ___

Answer 19

ammeter

Question 20

energy is higher than binding energy, electron is ___

Answer 20

ejected

Question 21

lower binding energy will be ejected with ___ Kinetic energy

Answer 21

highest

Question 22

does “radiation” = “a wave”

Answer 22

no

Question 23

momentum = ___ * ___

Answer 23

mass * velocity

Question 24

why can nothing be the speed of light

Answer 24

because nothing has infinite energy and no mass

Question 25

"closer to the gravitational field, time moves ___"

Answer 25

slower

Question 26

if two different observers measure the speed of light, will they get the same measurement

Answer 26

yes

Question 27

what is the speed of light in a vaccum

Answer 27

3.0*10^8 m/s

Question 28

is the speed of light independent of the motion of the source or receiver?

Answer 28

yes

Question 29

farsighted is corrected with what type of lens

Answer 29

converging

Question 30

formula used to calculated refractive power of a lens

Answer 30

1/f

Question 31

a virtual image is formed with concave/ __ lens

Answer 31

diverging

Question 32

do converging lens form virtual images?

Answer 32

yes

Question 33

with near point, if a specific number isn't mentioned, what measurement do we assume?

Answer 33

25 cm

Question 34

convex lens have __ power with __ focal point

Answer 34

positive, real

Question 35

concave lens have __ power with ___ focal point

Answer 35

negative, no

Question 36

what angle of refraction makes the light disappear?

Answer 36

90

Question 37

constructive interfer have ___ fringe

Answer 37

bright

Question 38

destructive have __ fringe

Answer 38

dark

Question 39

what type of lens makes things look smaller than its original size?

Answer 39

convex/converging lens

Question 40

do convex lens form a smaller, virtual image

Answer 40

yes

Question 41

what lens forms a real object that's larger than the original object?

Answer 41

converging

Question 42

diverging lens only form __ images

Answer 42

smaller

Question 43

converging lens can form real/ small/ __ images

Answer 43

larger

Question 44

T/F: an object is placed to the left of a converging lens. the image is always smaller or the same size as the object.

Answer 44

F

Question 45

T/F: an object is placed to the left of a converging lens. the image can be upright or inverted

Answer 45

T

Question 46

T/F: an object is placed to the left of a converging lens, the image is always to the right of the lens

Answer 46

F

Question 47

diverging lens have __ focal #

Answer 47

negative

Question 48

converging lens have __ focal #

Answer 48

positive

Question 49

a positive distance # means it is a ___ image

Answer 49

real

Question 50

a negative distance # means it is a ___ image

Answer 50

virtual

Question 51

convex lens are __ at the middle

Answer 51

thick

Question 52

concave lens are __ at the middle

Answer 52

thin