Class 12 Physics Important Questions | Chapter 6 Superposition Of Waves

Here we have a given Class 12 Physics Important Questions for Maharashtra Board HSC Examination 2023. Every students want to score good marks in Class 12 Board Exam,but number of students don't know how to score good marks. Dear students, given following questions had been asked in earlier HSC Board Examinations. From this post, you will know which type of questions had been asked in earlier Board Exams and same questions or same type of questions will be asked in your upcoming examination. If you study all these questions, you will get very good marks in your board examinations, Because so many questions from the following given questions will be asked in your upcoming examination.Therefore go through our Class 12 Physics Important Questions which are given in chapter-wise manner and simply try to solve these questions to score very good marks in Physics and obviously, you will! Best wishes to all dear students for your upcoming Maharashtra State Board Exam 2023.

यहां हमारे पास महाराष्ट्र बोर्ड HSC परीक्षा 2023 के लिए कक्षा 12वीं के Physics के महत्वपूर्ण प्रश्न दिए गए हैं। प्रत्येक छात्र कक्षा 12वीं की बोर्ड परीक्षा में अच्छे अंक प्राप्त करना चाहते हैं, लेकिन कई छात्र यह नहीं जानते कि अच्छे अंक कैसे प्राप्त करें। प्रिय छात्रों, नीचे दिए गए प्रश्न पिछले एचएससी बोर्ड परीक्षाओं में पूछे गए थे। इस पोस्ट से आप जानेंगे कि पिछली बोर्ड परीक्षाओं में किस प्रकार के प्रश्न पूछे गए थे और आपकी आगामी परीक्षा में भी इसी प्रकार के प्रश्न पूछे जाएंगे। यदि आप इन सभी प्रश्नों का अध्ययन करते हैं, तो आप अपनी बोर्ड परीक्षाओं में बहुत अच्छे अंक प्राप्त करेंगे, क्योंकि निम्नलिखित दिए गए प्रश्नों में से बहुत सारे प्रश्न आपकी आगामी परीक्षा में पूछे जाएंगे। इसलिए हमारे कक्षा 12 के भौतिकी के महत्वपूर्ण प्रश्नों को देखें जो अध्याय में दिए गए हैं | फिजिक्स में बहुत अच्छे अंक प्राप्त करने के लिए इन प्रश्नों को बुद्धिमान तरीके से हल करने का प्रयास करें और जाहिर है, आप करेंगे! सभी प्रिय छात्रों को आपकी आगामी महाराष्ट्र राज्य बोर्ड परीक्षा 2023 के लिए शुभकामनाएं।



Class 12 Physics Important Questions | Chapter 6 Superposition Of Waves

• Explain the formation of stationary waves by analytical method.What are nodes and antinodes? Show that the distance between two successive nodes or antinodes is λ/2. (March 2012)

• Distinguish between free vibrations and forced vibrations. (March 2013)

• With a neat labelled diagram, show that all harmonics are present in an air column contained in a pipe open at both the ends.Define end correction. (March 2013)

• Show that all (even as well as odd) harmonics are present as overtone in the case of an air column vibrating in a pipe open at both ends. (March 2013)

• With neat diagram explain fundamental mode of vibration of an air column in a pipe when,
i. Pipe is open at both ends
ii. Pipe is closed at one end.
Hence, derive the expression for fundamental frequency in each case. (Oct 2013)

• The equation of simple harmonic progressive wave is given by y = 0.05 sin π [20t - x/6], where all quantities are in S. I. units. Calculate the displacement of a particle at 5 m from origin at the instant 0.1 second. (March 2014)

• A pipe which is open at both ends is 47 cm long and has an inner diameter 5 cm. If the speed of the sound in air is 348 m/s, calculate the fundamental frequency of air column in that pipe. (March 2014)

• A 36 cm long sonometer wire vibrates with frequency of 280 Hz in fundamental mode, when it is under tension of 24.5 N. Calculate linear density of the material of wire. (Oct 2014)

• Draw neat, labelled diagrams for the modes of vibration of a stretched string in second harmonic and third harmonic. (Oct 2014)


• Explain what is Doppler effect in sound and state its any four applications. (March 2015)

• A stretched wire emits a fundamental note of frequency 256 Hz. Keeping the stretching force constant and reducing the length of wire by 10 cm, the frequency becomes 320 Hz. Calculate the original length of wire. (March 2015)

• What are forced vibrations and resonance? Show that only odd harmonics are present in an air column vibrating in a pipe closed at one end. (March 2015)

• A sonometer wire is in unison with a tuning fork of frequency 125 Hz when it is stretched by a weight. When the weight is completely immersed in water, 8 beats are heard per second. Find the specific gravity of the material of the weight. (Oct 2015)

• In a set, 21 tuning forks are arranged in a series of decreasing frequencies. Each tuning fork produces 4 beats per second with the preceding fork. If the first fork is an octave of the last fork, find the frequencies of the first and tenth fork. (Oct 2015)

• Show that all harmonics are present on a stretched string between two rigid supports. (Oct 2015)

• Explain analytically how the stationary waves are formed. Hence show that the distance between node and adjacent antinode is λ/4. (March 2016)

• A set of 48 tuning forks is arranged in a series of descending frequencies such that each fork gives 4 beats per second with preceding one. The frequency of first fork is 1.5 times the frequency of the last fork, find the frequency of the first and 42nd tuning fork. (March 2016)

• The fundamental frequency of an air column in a pipe closed at one end is in unison with the third overtone of an open pipe. Calculate the ratio of lengths of their air columns. (March 2016)

• A tube open at both ends has length 47 cm. Calculate the fundamental frequency of air column. (Neglect end correction. Speed of sound in air is 3.3x 102 m/s). (July 2016)

• A transverse wave is produced on a stretched string 0.9 m long and fixed at its ends. Find the speed of the transverse wave, when the string vibrates while emitting second overtone of frequency 324 Hz. (March 2017)

• Two sound notes have wavelengths 83/170 m and 83/172 m in the air. These notes when sounded together produce 8 beats per second. Calculate the velocity of sound in the air and frequencies of the two notes. (March 2017)

• Explain the formation of stationary waves by analytical method. Show the formation of stationary wave diagrammatically. (March 2017)

• What should be tension applied to a wire of length 1 m and mass 10 gram, if it has to vibrate with fundamental frequeney of 50 Hz? (July 2017)

• A set of 12 tuning forks is arranged in order of increasing frequencies. Each fork produces Y beats per second with the previous one. The last is an octave of the first. The fifth fork has a frequency of 90 Hz. Find "Y' and frequency of the first and the last tuning forks. (July 2017)

• Discuss different modes of vibrations in an air column of a pipe open at both the ends. State the cause of end correction. Find the end correction for the pipe open at both the ends in fundamental mode. (July 2017)

• What is meant by harmonics? Show that only odd harmonics are present as overtones in the case of an air column vibrating in a pipe closed at one end. (March 2018)

• The wavelengths of two sound waves in air are 81/173 m and 81/170 m. They produce 10 beats per second. Calculate the velocity of sound in air. (March 2018)

• Draw three neat diagram for modes of vibration of an air column in a pipe, when
i. the pipe is open at both ends, ii. the pipe is closed at one end.
Hence derive an expression for fundamental frequency in each case. (July 2018)

• The length of an air column for a fundamental mode in a resonance tube is 16 cm and that for second resonance is 50.25 cm. Find the end Correction. (July 2018)

• Show that beats frequency is equal to frequency difference between two interfering waves.  (July 2018)

• Explain the formation of stationary waves by the analytical method. Show that nodes and antinodes are equally spaced in stationary waves. (March 2019, July 2016)

• Show that even as well as odd harmonics are present as overtones in the case of an air column vibrating in a pipe open at both the ends. (March 2019)

• A stretched sonometer wire is in unison with a tuning fork. When the length of the wire is increased by 5%, the number of beats heard per second is 10. Find the frequency of the tuning fork. (March 2019)

• Explain the reflection of transverse and longitudinal waves from a denser medium and rarer medium. (March 2019)

• A sonometer wire 1 metre long weighing 2 g is in resonance with a tuning fork of frequency 300 Hz. Find tension in the sonometer wire. (March 2019)

• State and explain the principle of superposition of waves.(July 2019)

• Show that all harmonics are present in case of an air column vibrating in a pipe open at both ends. (March 2020)

• A wire length 1 m and mass 2 g is in unison with a tuning fork of frequency 300 Hz. Calculate the tension produced in the wire. (March 2020)


Comments

Post a Comment

please do not comment any spam link in the comment box.