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ok let me try this again, Homework Equations N1sinθ=N2sinθ The Attempt at a Solution The light will enter the prism and refract, cross the prism, hit the other side, exit and refract. so there will be lots of angles for me to find, i just don't know how to solve for them except for...

so sinθ/Sin30=1.53/1 =1.53sin(30)??

we don't know Sin(feta) 1 or N1. we only know the angle of refraction and the index of refraction.

i don't know how to draw on here. :( and Snells law right? i cannot figure out how to do that. if Sin(feta)1/Sin(feta)2 = N2/N1, i only have two of the variables! don't i at least need three?

Homework Statement 5) A beam of monochromatic light enters an equilateral triangular prism at an angle of incidence of 30.0º. If the index of refraction of the prism is 1.53, at what angle with respect to the surface of the prism does the beam emerge from the other side of the prism...

phew! thank you so much for your time. :)

k just look at this part of the equation. 1)F= v/ λ 2)F=0.04m/s/0.005m 3)F=8 ----> m/s *1/m. so since the m's cancel out, were left with 1/s which is Hz right? because if u plugged a number in fr seconds it would be like the equation, f=1/T. 4)Λ=v/f 5)Λ= 0.03m/s/8 6)=3.8 x 10-3 in step...

ok so 8hz * 0.5cm does work out to the right speed. (4). in that case what is wrong with the second way i tried.

ok, so when i tried solving the problem, what part did i do wrong. and yes, i understand that. the a's are cancelling each other out

i knwo that 8 hz doesn't equal 8 seconds, which is why i went f=1/t, f=1/8 which gives me Hz does it not?

from what your telling me.. I am not sure what is wrong with the first way? because i did change the frequency into the period

F= v/ λ F=0.04m/s/0.005m F=8s----->frequency isn't measured in s, its measured in Hz. so.. F=1/T F=1/8s f=0.125Hz λ=v/f λ= 0.03m/s/0.125hz =0.24m or do i just keep the f in seconds and do this instead. F= v/ λ F=0.04m/s/0.005m F=8 λ=v/f λ= 0.03m/s/8 λ=3.8 x 10^-3m

ok, so if the units for frequency is Hz and that's what I am finding, it gives me T because the meters cancel. so would i go 1/T to get the frequency then plug that number into get the actual new wavelength?

ooo so i would find the force using f=v/ λ, then plug that force and the new speed into find the new wavelength. do i have to change everything from cm to m?

Homework Statement In a ripple tank experiment, students generate water waves at a speed of 4.0 cm/s and a wavelength of 0.5 cm. If the waves are refracted into shallower water where their speed decreases to 3.0 cm/s, what is their new wavelength? Homework Equations The Attempt...