Скачать или смотреть NEET 2025 Physics PYQ | Open & Closed Organ Pipe Fundamental Frequency Problem | NEET 2026 & 2027

In this video, we solve a NEET 2025 Physics Previous Year Question (PYQ) from the topic of Waves and Sound – Organ Pipes.

📌 Question Summary:
A pipe open at both ends has a fundamental frequency ( f ) in air. The pipe is then dipped vertically in a water drum to half of its length. What will be the new fundamental frequency of the air column?

📌 Concepts Involved:

Fundamental frequency of open pipe:
[
f_{\text{open}} = \frac{v}{2L}
]
Fundamental frequency of closed pipe (one end dipped in water):
[
f_{\text{closed}} = \frac{v}{4L_{\text{effective}}}
]
Here, original pipe length = ( L ). When half is dipped in water, effective air column = ( L/2 ).
So, new fundamental frequency =
[
f' = \frac{v}{4(L/2)} = \frac{v}{2L}
]

📌 Final Answer:
[
f' = f
]
The new fundamental frequency of the pipe is the same as the original.

This is a beautiful application of open and closed pipe concepts in waves and sound, and a frequently asked type in NEET Physics. Must-practice for NEET 2025, NEET 2026, and NEET 2027 aspirants.

👉 Don’t forget to Like, Share & Subscribe to Solved Insights for more NEET PYQ solutions!
📢 Join our student communities for daily practice questions, discussions, and important updates.

🔗 Website: https://solvedinsights.com
📺 YouTube:    / @solvedinsights  
📷 Instagram:   / solvedinsights  
📘 Facebook: https://www.facebook.com/profile.php?...
📱 WhatsApp Group: https://chat.whatsapp.com/HQKpQ0TVVO8...
✈️ Telegram Group: https://t.me/+tybisTIQh58yYzY1