A beam of light from a laser illuminates a glass how long will a short pulse of light beam take to travel the length of the glass.

The time of short pulse of light beam is

Explanation:

Given that,

A beam of light from a laser illuminates a glass.

Suppose, the length of piece is

Index of refraction is 2.83.

We need to calculate the speed of light pulse in glass

Using formula of speed

Put the value into the formula

We need to calculate the time of short pulse of light beam

Using formula of velocity

Put the value into the formula

Hence, The time of short pulse of light beam is

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