JEE-ADVANCED SERIES Physics
Sound Wave
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
3
2023 Chapter Questions 3 MCQs
01
PYQ 2023
medium
physics ID: jee-adva
𝑆1 and 𝑆2 are two identical sound sources of frequency 656 Hz. The source 𝑆1 is located at 𝑂 and 𝑆2 moves anti-clockwise with a uniform speed of 4 ms-1 on a circular path around 𝑂, as shown in the figure. There are three points 𝑃, 𝑄 and 𝑅 on this path such that 𝑃 and 𝑅 are diametrically opposite while 𝑄 is equidistant from them. A sound detector is placed at point 𝑃. The source 𝑆1 can move along the direction 𝑂𝑃. [Given: The speed of sound in air is 324 ms-1].
Consider both sources emitting sound. When 𝑆2 is at 𝑅 and 𝑆1 approaches the detector with a speed 4 m s−1 , the beat frequency measured by the detector is _______Hz
Consider both sources emitting sound. When 𝑆2 is at 𝑅 and 𝑆1 approaches the detector with a speed 4 m s−1 , the beat frequency measured by the detector is _______Hz
02
PYQ 2023
easy
physics ID: jee-adva
and are two identical sound sources of frequency . The source is located at and moves anti-clockwise with a uniform speed on a circular path around , as shown in the figure. There are three points , and on this path such that and are diametrically opposite while is equidistant from them. A sound detector is placed at point . The source can move along direction . [Given: The speed of sound in air is ]
03
PYQ 2023
easy
physics ID: jee-adva
and are two identical sound sources of frequency . The source is located at and moves anti-clockwise with a uniform speed on a circular path around , as shown in the figure. There are three points , and on this path such that and are diametrically opposite while is equidistant from them. A sound detector is placed at point . The source can move along direction . [Given: The speed of sound in air is ]
When only is emitting sound and it is at , the frequency of sound measured by the detector in Hz is _________.
When only is emitting sound and it is at , the frequency of sound measured by the detector in Hz is _________.