Page Not Found Error After Deploying The Solution Using PowerShell

I am a novice in sharepoint 2013.

I have created a Sharepoint 2013 Solution using "Empty Project" as my template and added two aspx pages.

When deploying the solution using VS2012 the solution gets deployed and worked perfectly. When I use powershell to deploy the solution on this same web application also it works as expected.

The problem arises when I deploy the solution using powershell on a different web application. It deploys perfectly but then I get page not found error even though I can see the aspx pages in the file system. If I deploy the solution using VS2012 on this same web application it works perfectly and then even if I use power shell in my subsequent attempts it works fine.

I am really stumped and have no clue as to where I am making a mistake.

What special does VS do while deploying the solution for the first time?

Below is my powershell script

Add-PSSnapin Microsoft.Sharepoint.Powershell
Import-Module WebAdministration

$webURL = read-host -prompt ‘Sharepoint Web Application URL (Eg: http://myurl.com):’;
$rootFilePath = read-host -prompt ‘Full File Path of wsp file (Eg: C:\Packages):’;
$wspFilePath = $rootFilePath + '\my.wsp'


$spWeb = Get-SPWeb -Identity $webURL

$pool = (Get-Item "IIS:\Sites\myapplication"| Select-Object applicationPool).applicationPool

Restart-WebAppPool $pool

write-host "App Pool resetted."

Add-SPSolution $wspFilePath -Confirm

Install-SPSolution -Identity my.wsp -GACDeployment -WebApplication $webURL -Force

write-host "Solution deployed."

The solution gets deployed perfectly but I am unable to browse my pages.