Answer:
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
Answer: polar ice reflecting the Sun's light back toward space
The digit with the least amount of confidence can be seen in the second part which is 7.
The number of significant figures in the measurement of the stopwatch is 4.
An elapsed time is the difference between the time prior to the commencement of an event and the time at which the event has ended.
From the stopwatch, the elapsed time is given as:
0hour : 13 minutes : 37 seconds
The digit with the least amount of confidence can be seen in the seconds part is 7.
A significant figure is a real figure that is dependable and absolutely essential to convey the quantity of something.
The number of significant figures in the measurement of the stopwatch is 4.
Learn more about elapsed time here:
brainly.com/question/10403745
Answer:
23 hours 56 minutes 4.091 seconds
Explanation:
