Sound Waves - Exercise (Part 4) | Class 11 Physics Chapter 16 (HC Verma) JEE/NEET
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In this video,
โ๏ธ Class: 11th
โ๏ธ Subject: Physics
โ๏ธ Chapter: Sound Waves (Chapter 16)
โ๏ธ Topic Name: Sound Waves - Exercise (Part 4)
โ๏ธ Topics Covered In This Video (By Ashish Sir): In this video, Ashish Sir investigates Sound Waves Exercise (Part 4). Whether you are learning this concept as part of a physics course or just curious about Sound Waves, you will gain insight into the topic. Sir is discussing about the Exercise Questions. This video will prove a great learning tool for enthusiasts.
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00:00 Introduction: Sound waves - Exercise (Part 4)
01:02 Question 61 to 70: Sound waves - Exercise (Part 4) : Chapter 11
Que. 61 A tuning fork of frequency 256 Hz produces 4 beats per
second with a wire of length 25 cm vibrating in its fundamental
mode. The beat frequency decreases when the length is
slightly shortened. What could be the minimum length by
which the wire be shortened so that it produces no beats with
the tuning fork?
2:29:09 Question 71 to 75: Sound waves - Exercise (Part 4) : Chapter 11
Que. 71 Figure shows a person standing somewhere in between
two identical tuning forks, each vibrating at 512 Hz. If both the
tuning forks move towards right at a speed of 5.5 ms", find the
number of beats heard by the listener. Speed of sound in air
330 ms
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