Hello. To address your question thoroughly, here's a detailed explanation

If you're trying to open a link in a NEET previous year question book, here's how you can approach it,:-

1. Website URL:-

For website addresses, (https://www.example.com) simply enter the address directly into your web browser's address bar on any internet-connected device, such as your computer, tablet, or smartphone .If the URL is long or complex, you can try typing a few keywords from the link into a search engine like Google. This might lead you to the correct webpage.

2.QR Code:-Download a QR code scanner app on your smartphone  or use Google lens to reach directly to the webpage .The app will scan the code and open the link in your web browser.

3.Shortened Link-Shortened links, like bit.ly/example, are typed directly into your web browser, similar to regular website addresses. However, exercise caution. These links can sometimes redirect you to unknown or potentially harmful websites, so proceed with care."

Some links might not work due to poor network connection , typographical errors or some links might be outdated or no longer active.

I hope this helps.