In the image, which description below represents the L of the equation?

The distance between A and B

The distance between A and D

The distance between midpoints D, E, and F

The light bands between D and E and F

The explantion of this question is given below in the explanation section

Explanation:

The given problem is about the double slit-experiment problem.

The formula that we will use to figure out problems involving double slit experiments is given below.

Double slit-experiment equation.

Whereas:

λ = wavelength of light used (m)

x = distance from central fringe (m)

d = distance between the slits (m)

n = the order of the fringe

L = length from the screen with slits to the viewing screen (m)

So in the give option L is the distance between A and D

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

the correct choice is a .

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