Light from a helium-neon laser (λ = 633 nm) is used to illuminate two narrow slits. the interference pattern is observed on a screen 3.00 m behind the slits. eleven bright fringes are seen, spanning a distance of 52.0 mm. what is the spacing (in mm) between the slits?

The spacing between the slits is 0.40233 mm

Explanation:

Let 'd' be the distance between the slits and 'D' be the distance of the screen from the plane of slits.

We know that , in an interference pattern the fringe(dark or bright) width is given by -

f =

For 11 bright fringes , if its total spanning distance is 52.0 mm , then for one bright fringe , the fringe width(f) would be -

f = = 4.72 mm

∴ From above equations ,

= 4.72 mm = (4.72 × ) m

Substituting the values in above equation -

= 4.72 ×

∴ d = 0.0004023 m =0.4023 mm

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.