Physics question and answers for March 12, 2024
- Q 3 Two sound waves travel at a speed of 330 m s If their frequencies are also identical and are equal to 540 Hz what will be the phase difference...
- Q Find the wrong statement from the following The relative speed between a source of sound and the observer is zero but the wind is blowing with a velocity Vw from...
- Q viii Length of OOP is 44 cm speed of sound 340 m s fundamental frequency is 340 Hz then value of end correction is Length of OOP is 38 cm...
- Q Length of resonance tube is 150 cm Maximum level of liquid in resonance candition for wave having wavelength 80 cm is vi Length of resonance tube is 150 cm Minimum...
- Q A sonometer wire emits a fundamental note of frequency 150 Hz Calculate the frequency of the note emite when the tension is changed in the ratio of 9 16 and...
- Q A tuning fork is found to give 20 beats in 12 seconds when sounded in conjuction with a stretched string vibrating under a tension of 14 4 or 10 kgf...
- Q c y 3 sin 5x 0 5t 4 If OOP have 10 antinodes and fundamental freq 300 Hz then freq at 10th Antinode frequencies of COP s first overtone and...
- Q 61 In the circuit shown here what is the value of the unknown resistor R so that the total resistance of the circuit between points P and Q is also...
- Q D Two plane harmonic sound waves travelling in the same direction are given by the following displacement equations y x t A cos 0 5mx 100m y x t A...
- Q If the intensity of sound is increased by a factor of 30 by how many decibels in the sound level increased 1 14 77 dB 2 14 50 dB 3...
- Q Two tuning fork having frequency 320 Hz 324 Hz produce beat phenomena Determine a Beat time period b Minimum time interval in which maximum intensity become minimum c Number of...
- Q 4 A source of sound gives 5 beats per second when sounded with another source of frequency 100 Hz The second harmonic of the source together with a source of...
- Q The fundamental frequency in an open organ pip is equal to the third harmonic of a closed organ pipe If the length of the closed organ pipe is 20 cm...
- Q The figure shows an instantaneous profile of a tope carrying a progressive wave moving from left to VIAW right then A B a the phase at A is greater than...
- Q Length of a sonometer wire stretched between two points is 105 cm Two bridges are kept between two ends so that sonometer wire is divided into three parts whose fundamental...
- Q A sound source is moving on a circular path of radius R with constant angular speed o in anticlockwise direction and emits a frequency n An observer performs simple harmonic...
- Q Sound Wave Q20 A person standing at a distance of 6 m from a source of sound receives sound wave in two ways one directly from the source and other...
- Q 8 Two sound sources of frequency 360 Hz each one moving toward observer while second moving away from observer with same speed 5 5 m s then number of beats...
- Q A train is moving in an elliptical orbit in clockwise sense with speed 90 m s The elliptical orbit is 1 1250 Hz represented by the equation driver gives a...
- Q An organ pipe of 3 9 m long open at both ends is driven to third harmonic standing wave If the amplitude of pressure oscillation is 1 of mean atmospheric...
- Q 01 Two tuning forks of frequencies 100 Hz and 106 Hz are sounded together What is the time interval between a waxing and the nearest waning a 1 2 2...
- Q A radio wave of intensity is reflected by a surfac Find intensity if pressure exerted on the surface 2x10 8 N m a 3 N m b 4 N m...
- Q If sound wave travelling through air is reflected from a wall then the phase difference between incident and reflected pressure wave will be 1 Zero 3 si 2 mumining 4...
- Q 10 2 A square ground of side has a circular running track of radius 14 The centre of square ground coincides with the centre of circular track A man is...
- Q The time of reverberation of a room A is one second What will be the time in seconds of reverberation of a room having all the dimensions double of those...
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