Question

Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect the frequency and wavelength of the lightwaves?

A) Their frequency stays the same and their wavelength increases

B) Their frequency stays the same and their wavelength decreases

C) Their frequency increases and their wavelength decreases

B) Their frequency decreases and their wavelength increases

Answer 1

@ganeshie8 can you please help?

Answer 2

what formulas do u know

Answer 3

none this isn't a formula question

Answer 4

it is

Answer 5

there is a relationship between frequency, wavelength, and the speed of a wave

Answer 6

@ParthKohli can you help?

Answer 7

no inky is helping you

Answer 8

he literally said in the chat he'd "pretend" to help me

Answer 9

@rachelg1456 you really don't have faith in me do you?

Answer 10

you thought it was an equation question when it clearly doesn't have numbers, and
doesn't ask you solve an equation. i just need help

Answer 11

LOL
Physics is based on equations, silly. Qualitative mush mush does you no good because it's too vague.

Answer 12

did you even read the question

Answer 13

do you want to keep arguing with me on how to do physics problems, or you want to open your mind?

Answer 14

I solved this question before I made my first post LOL

Answer 15

im trying to but please explain how this question is going to be solved using an equation

Answer 16

presentation is more important since I am supposed to be helping you and not just giving you the answer

Answer 17

Ya, which equation relates frequency, wavelength, and the speed of a wave?

Answer 18

you can't use an equation to answer this question!!!!!!

Answer 19

yo if it's a physics question it can be answered with a model. All of physics is based on mathematical models. If you can't use an equation to answer this question it ain't physics.

Answer 20

Are you stupid? Physics is defined as "the branch of science concerned with the nature and properties of matter and energy. The subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

Answer 21

Defined by whom? and how do we study nature? with mathematical models after experimentation.

Answer 22

come up with a branch of physics we study that does not involve mathematical modelling. And btw this is optics, developed by newton

Answer 23

Or, state the equation listed if you want to make progress on this question LOL

Answer 24

what numbers are you going to use to solve this so called "equation". please tell me since you clearly "know everything"

Answer 25

yo, you asked a random group of people on the internet for help and one person responded. Now you are acting like an entitled sob. If you ask for help, the accept the help. If you don't trust people to help you, then don't ask for help and go find the answer yourself.

I help you the way I want. You are asking for help.
Beggars can't be choosers.

Answer 26

okay i found an equation. i found v=f*w

Answer 27

you know what I am done dealing with you
http://physics.stackexchange.com/questions/22385/why-does-wavelength-change-as-light-enters-a-different-medium
have fun

Answer 28

@ParthKohli could you help now? :(

Answer 29

what formulas do u know

Answer 30

velocity=frequency*wavelength

Answer 31

parth I already gave this girl the answer dunno why she's still asking for help

Answer 32

^can you leave please you said you were done

Answer 33

v=lambda*f
Frequency can't change
v goes down
lambda has to go down because f can't change
qed

Answer 34

or for the particularly intelligent, the second choice.

Answer 35

oh okay! i think im starting to understand it. sorry bout earlier. guess you were right, knowing an equation does help

Answer 36

thanks! i got the answer now g2g!