javasript file not found error

[krishna062]

I have linked the js file in html file . When I open the chrome browser console it shows error -
index.html:54 GET file:///C:/Users/nehaj/Desktop/krishna/30daysofJavaScript/day1/introduction.js net::ERR_FILE_NOT_FOUND

But when I copy the file path (which starts like c:/users/...) and use it to link the js file.

I wanted to know why it works after copying the full path but not when I am using only file name to link the js file. Bpth html and js files are in same folder.
Can anyone clear my doubt?