Question

C

Answer 1

good guess but "counting the number of atoms" treats matter as a particle not as a wave

if you remember, there's a property of waves where it combine constructively or destructively, starts with an i

Answer 2

interference

Answer 3

awesome, so scientists observed electrons interfering with each other which is a property that is only found in waves

leading us towards answer choice..?

Answer 4

B

Answer 5

good

Answer 6

B

Answer 7

good attempt, but since temperature and energy are proportional,

as the temperature increases the energy and frequency would keep increasing infinitely

(B can't be it because the brightness would not decrease)

Answer 8

A

Answer 9

good

Answer 10

D

Answer 11

so classical physics treats light as a wave, and the energy of light increases with intensity, so even a low frequency light could eject electrons with enough intensity, pointing us towards answer choice..?

Answer 12

C

Answer 13

close, but since energy is related to intensity, for a low frequency we can just pump up the intensity so frequency isn't really that important

pointing us towards B

Answer 14

that's the same question again haha

Answer 15

C

Answer 16

good guess but the concept being illustrated here is energy quantization, any idea what this is? (it's ok if you don't)

Answer 17

idk something with the energy going up or down?

Answer 18

well quantization = energy can only be absorbed in specific amounts (quanta) which is why the energy doesn't just keep going on forever, leading us towards which choice?

Answer 19

A

Answer 20

good

Answer 21

C

Answer 22

good