Young's double slit experiment is set up to measure an unknown frequency of light. the distance between the slits is .30 mm and the screen with the interference pattern is 4.2 m away. the distance between the central bright fringe and the next bright fringe is 6 mm.(a) what is the unknown wavelength of light? a. 429 nmb. 489 nmc. 535 nmd. 602 nme. 688 nm(b) at what angle is the 3rd order bright fringe (relative to the central maximum)? a. 0.25 degreesb. 0.50 degreesc. 0.75 degreesd. 1.00 degreese. 1.25 degrees(c) how far is the 2nd order dark fringe from the central bright fringe? a. 5 mmb. 10 mmc. 15 mmd. 20 mme. 25 mm(d) if lower frequency light was used, what would happen to the spacing of the bright fringes? a. nothingb. they would spread apartc. they would get closer together(e) if the entire apparatus was placed underwater, what would happen to the spacing of the bright fringes? a. nothingb. they would spread apartc. they would get closer togetherd. light of wavelength 481 nm shines through a slit of width 5.6 mm unto a screen 1.1 m away.(f) how many total dark fringes can be seen? a. 8b. 14c. 18d. 22e. 26
(g) what is the width of the bright central diffraction fringe? a. 8 cmb. 19 cmc. 30 cmd. 41 cme. 52 cm

1.0

step-by-step explanation:

is this part of a question or something

28

step-by-step explanation:

because that's the answer

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!