Question

C?

Answer 1

Hm... it Does seem like C to me as well.

Answer 2

@Shadow

Answer 3

Let's think about this with real examples

radio waves have a very long wavelength
x-rays have a very short wavelength

but x rays have much more energy than radio waves, right?

Answer 4

yes

Answer 5

so long wavelength = less energy
short wavelength = more energy

Answer 6

Ye?

Answer 7

So Wavelength =)

Answer 8

BUT

what does proportional mean?

it should mean more = more
and less = less

Answer 9

IF wavelength was proportional to energy
then the longer wavelength should equal more energy

Answer 10

but that's not what we have, right?

Answer 11

Nope

Answer 12

It means corresponding in size or amount to something else.

Answer 13

it needs to kind og mean the same

Answer 14

Or Corresponding to a Ratio

Answer 15

yeah

so since wavelengths are
less length = more energy

this means that wavelengths are INVERSELY proportional to energy

NOT proportional

Answer 16

so the opposite

Answer 17

o

Answer 18

indeed, so let's take a look at the other options because C isn't right

Answer 19

O: Rip

Answer 20

Maybe B

Answer 21

ok cool
do you want to try explaining to me why you think that? :)

Answer 22

I think I am almost positive lol =)

Answer 23

I was stuck between those two but since you explained why its not c I think i know why its b instead

Answer 24

You are such a great help

Answer 25

I'm glad I could help ^_^

Answer 26

C

Answer 27

I did the calculations and everything, just making sure I did them right

Answer 28

yup, that is correct :)

Answer 29

Clueless about this one

Answer 30

I went to the zoo the other day, and apparently there are snakes who can "see" heat/temperature!
https://www.telegraph.co.uk/news/earth/wildlife/7441002/Snakes-have-heat-seeking-vision.html

Answer 31

Oh my god

Answer 32

I cant see anything snake related I'm sorry

Answer 33

I literally cannot sleep at night

Answer 34

LOL sorry
I thought it would be a cool "real world application" that would be interesting

Answer 35

its my biggest fear has been since i was like 5 i literally start screaming in my sleep if i even see a picture

Answer 36

Yeah its kind of stupid but its a real fear

Answer 37

So D then maybe

Answer 38

I had a teacher give me a really cool demonstration with cameras that visualize different lights, here's something similar https://www.youtube.com/watch?v=fpx7hsoYEt4

hmmm I'm not sure entirely how to explain this

it's like... the electromagnetic waves give off energy
energy = heat

we can see visible light, because light has enough energy to bounce off of something and back to us, carrying information
things with less energy than visible light, such as microwaves and infrared, don't have enough energy to bounce through things such as glass.

so, for example, If I can see with visible light, I can see through the glass. But if I can only see with infrared light, the glass looks like a wall, because it doesn't have enough energy to pass through

for a similar reason, x rays can "see" into people's bodies and look at their bones, while we humans can't see bones in visible light

Answer 39

hmmm I didn't do a good job of explaining... sorry

Answer 40

Nope you did perfect , A?

Answer 41

correct :)

Answer 42

Okay so I know we did a question that is similar

Answer 43

D

Answer 44

yup! you're correct :D

Answer 45

D

Answer 46

hmmm

so
V = velocity = speed (kinda) = speed of light = 3*10^8
f = frequency = 6*10^(18)

Answer 47

then wavelength = velocity / frequency

Answer 48

A

Answer 49

perfect :)

Answer 50

A

Answer 51

the number of waves that occurs each second is considered the frequency

x rays have a higher frequency and more energy than microwaves for example

Answer 52

Wait its D?

Answer 53

yup!

all electromagnetic waves move at the speed of light

Answer 54

A

Answer 55

yeah that sounds right

because when a star moves 'away' from earth, it is redshift
so toward earth should be blueshift

Answer 56

B

Answer 57

perfect ^_^