Physics question and answers for March 16, 2024
- Q I wo friends start cycling around a circular track radius R in the same sense starting from the same point with angular speed W and 2w The slower one is...
- Q 1 consider two progressive wave trains of different wavelength and frequency but the same amplitude A propagated in the ve direction The wave amplitude equuations are y x t 10sin...
- Q 84 Which of the following stat 3702675675 The problem of having to describe waves arises in fields like acoustics electromagnetics and fluid dynamics Jean d Alembert discovered the three
- Q Two sirens situated one kilometre apart are producing sound of frequency 330 Hz An observer starts moving from one siren to the other with a speed of 2 m s...
- Q A loudspeaker L is placed in the hall with two doors D and D open to the playground as shown below The distance between D and D is 74 25...
- Q An open organ pipe of radius 1 cm is vibrating in it s 1 overtone Here origin is at left end of the pipe The x coordinate of pressure node...
- Q A loudspeaker which emits sound of frequency 1000 Hz is placed several metres from a plane reflecting wall A in a large chamber containing a gas A small microphone M...
- Q A source of sound gives five beats per second when sounded with another source of frequency 100s The second harmonic of the source together with a source of frequency 205s...
- Q 1 3 a and d 4 All are correct Three observers A B and C are listening to a 31 moving source of sound The diagram below shows the location...
- Q so the magnification is given by m 200 3 200 1 25 get the magnifying power comes out to be m 2 n 28 A string is stretched between fixed...
- Q Sound travels about 750 miles per hour If you stand in a canyon and sound a horn you will hear an echo Round your answers to the nearest tenth as...
- Q police car with its 300 Hz siren is moving away in the warehouse at a speed of 20 0 m s Part A What frequency does the driver of the...
- Q An iron block is dropped into a deep well Sound of splash is heard after 4 23 s If the depth of the well is Waves 105 78 4 m...
- Q HIFU U IV 3 12 On a transmission line with Z 50 the voltage at a distance 0 4A from the load is 4 j2 The corresponding current is 0...
- Q Two loudspeakers A and B are set up 2 80m apart from each other as shown in the diagram below The speakers are both emitting a frequency of 137 Hz...
- Q O A source of sound emitting frequency 256 Hz moves at 5m s towards a wall Find the beat frequency heard by an observer if the source is between the...
- Q 3 A train moving at 80 miles hr sounds the whistle of frequency 400 Hz when 1 mile away from a railway crossing What is the frequency heard by an...
- Q Which of the following changes would increase the speed of sound in a gas medium a Increase in pressure b Decrease in density c Increasing the RMS speed of gas...
- Q A wire is tied between two walls separated by a distance of 50cm If the diameter of the wire is 1mm and tension in it is 100N The wire in...
- Q 1 A sound source emits a frequency 1800 Hz and moves along a straight line at a distance 250m from a stationary observer If the speed of source is 0...
- Q When a closed organ pipe of adjustable length is used consecutive resonance is observed with frequency of 2000 Hz at length 1 and 1 of the pipe If the difference...
- Q Here it should be negative sign right Pls help 5 NORMAL MODES OF ORGAN PIPES Closed organ pipe only odd XX Seventh harmonic 5th Overtone Ninth harmonic 1 L n...
- Q 09 Two sound sources of same frequency are placed at distance of 100 meter An observer when moving between both sources hears 4 beats per second The distance between sound...
- Q Visible light of frequency f 4 832 10 4 Hz is beamed directly at a metal reflector Neglecting the refractive index of air a 5 points Find the wavelength of...
- Q A train is moving on a straight track with speed 20 ms It is blowing its whistle at the frequency of 1000 Hz The percentage change in the frequency heard...
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