Physics question and answers for March 18, 2024
- Q If the wire is gently tapped in vertical direction half way between the pulleys what is the lowest frequency at which it will vibrate transversely The mass per unit length...
- Q It has been observed that velocity of longitudinal and transverse mechanical waves in this earth are 8 km s and 5 km s respectively If the time interval between P...
- Q a stationary wave represented by y 2acos kx sin wt the intensity at a certain point maximum when 1 cos kx is maximum 2 cos kx is minimum 3 sin...
- Q at a point 10 m from the point source is 20 dB then the sound level at distance 20 m from the same source will be about a 18 dB...
- Q 22 The frequency of the second overtone of the open pipe is equal to the frequency of the first overtone of the closed pipe The ratio of lengths of the...
- Q A wave pulse propagating in positiv 1 1 x 1 by y at t 0 and y Eat 1 Yx 1 t 2sec when n and y are in metre...
- Q Problem 17 A string is under tension so that its length is increased by times its original length The ratio of n fundamental frequency of longitudinal vibrations and transverse vibrations...
- Q Problem 6 A string of length 0 4 m and mass 10 2 kg is tightly clamped at its ends The tension in the string is 1 6N Identical wave...
- Q Two organ pipes A closed and B open of same cross section but different lengths are connected so as to make a longer pipe If their respective fundamental frequencies are...
- Q For a wave propagating in a medium identify th property that is dependent of others 1 Velocity 2 Wavelength 3 Frequency 4 Both 1 and 2
- Q 2 Which of the following statement is true about stationary waves 1 All particle except particles at node execute SHM 2 All particles except particles at node come to their...
- Q sound waves are given by y Asin 2 2rnt G 2 y A sin 22 2 nt 2 12E1 1 6 V S E do stomsiba 1 2 Bl 8...
- Q 23 The vibrations of a string of length 60 cm and fixed at both the ends are represented by the equation TEX y 4 sin cos 96nt 15 In which...
- Q d particle B is moving downward Fig 10 32 shows four progressive waves A B C and D with their phases expressed with respect to the wave A It can...
- Q m VK 2 25K 1 2 4K 43 A curve is plotted represent the dependence of the ratio of the received frequency f to the frequency fo emitted by the...
- Q 8 A string is stretched between fixed points separated by 75 0 cm It is observed to have resonant frequencies of 420 Hz and 315 Hz There are no other...
- Q A polaroid examines two adjacent plane polari sed beams A and B whose planes of polarisation ar mutually perpendicular In the first position of the analyser beam B shows zero...
- Q are shown in the diagram What is the frequency and the phase relationship between the voltages M 0 Jes Iam Frequency in Hz Phase lead of N over M in...
- Q A metallic rod of length 1 m is rigidly clamped at its mid point Longitudinal stationary waves are set up in such a way that there are two nodes on...
- Q 1 5 4 N A rope of length L and mass m hangs freely from the ceiling The velocity of transverse wave as a function of position x along the...
- Q A broad source of light 1 680 nm illuminates normally two glass plates 120 mm long that touch at one end and are separated by a wire 0 034 mm...
- Q In the figure the intensity of waves arriving at The D from two coherent sources S and S is Io wavelength of the wave is 4m Resultant intensity at D...
- Q The speed of light in media 1 5 x 108 m s and 2 0 x 108 m s respectively A ray of light enters from medium M to M...
- Q In closed end pipe of length 105 cm sta What distance from the closed end amongst the following 4 45 1 20 cm 2 60 cm 3 85 cm The...
- Q 2 A ray of light travelling in air have wavelength A frequency n velocity v and intensity 1 If this ray enters into water then these parameters are X n...
- Q The waves set up in a closed air pipe are a longitudinal and progressive b longitudinal and stationary c transverse and stationary d transverse and progressive
- Q Three coherent sonic sources emitting sound of single wavelength X are placed on the x axis at points 11 6 0 0 0 2 11 6 0 The intensity reaching...
- Q D Which one of the followings is correct regarding scattering of light 1 The light of shorter wavelengths is scattered much more than that of large wavelengths if size of...
- Q A string that is 10 cm long is fixed at both ends At t 0 a pulse travelling from left to right at 1 cm a is 40 cm from...
- Q The transverse displacement of a string is given by y x t 0 06 sin 2 3 X cos 120nt boecis where x and y are in m and t...
- Q Three waves producing displaceme same direction of same frequency and of amplitudes 10 m 4um and 7u m arrive at a point with successive phase difference of T 2 The...
- Q The Y sin 2007 t 330 are 1 100 Hz 5 m s 2 300 Hz 100 m s 3 100 Hz 330 m s 4 30 m s 5...
- Q 3 A wave has SHM whose period is 4 s while another wave which also possess SHM has its period 3 s If both are combined then the resultant wave...
- Q Each light source S S S3 S4 S5 S in a line has same power same wavelength A and all are in phase Distance between consecutive sources is a if...
- Q 2 m and refractive index n 1 7 inserted in front of one of the slits in Young s double slit experiment Another plate of a transparent material of thickness...
- Q An observer is moving with half the speed of light towards a stationary microwave source emitting waves at frequency 10 GHz What is the frequency of the microwave measured by...
- Q epposite TX 3 A string vibrate according to the equation y 5 sin t is in seconds a What is the equation of incident and reflected wave by What is...
- Q 195 A source of sound and a detector is shown in the figure Detector is moving along a circle with constant angular speed wo It starts from shown location at...
- Q 3 1 4 4 4 1 12 A wave represented by the equation y acos kx wt is superposed with another wave to form a stationa wave such that the...
- Q d 3 7 t 36 The normal density of gold is p and its modulus is B The increase in density of piece of gold when pressure P is applied...
- Q What do we call the part of the wave labeled with the letter C in the image below B MW A A Compression C Frequency D W C B Rarefaction...
- Q 23 An electromagnetic wave travelling in the x direction has frequency of 2x 10 4 Hz and electric field amplitude of 27 Vm 1 From the options given below which...
- Q A uniform rope of mass 0 1 kg and length 2 5 m hangs from ceiling The speed of transverse wave in the rope at upper end and at a...
- Q 32 Two waves get superposed on a string 3 sin2 x 10t Y 3 sin2 x 10t and Y Then find the distance between two adjacent nodes on the string...
- Q VM A plane mirror is falling vertically as shown in the figure If S is a point source of light the rate of increase of the length AB is 018...
- Q A Wave front moves 1 64 m in 4 00 s What is the speed of the wave 0 410 m s 1 64 m s 2 44 m s...
- Q Carrie is making a presentation on solar winds Her notes of the steps that must occur for solar winds to form ar below 1 The stream of electrically charged particles...
- Q A wave is modeled with the function y x t 0 87m cos 0 29rad m x 0 49rad s t T 3 Find the wave speed Round your answer...
- Q 19 You have a sound recording of two strings vibrating next to each other and producing a beat frequency of 2 Hz You know that one of the strings is...
- Q Let s take the Earth to be 1 unit distance 1 AU see section V below from the Sun If the intensity of light is 1 light unit at the...
- Q A 6 4 m long string has a mass of 2 53g What is the mass in kg of an object hung from its end if a 136 Hz wave...
- Q Question 2 10 Points The displacement of an object is described by this equation where x is in meters and t is in seconds x 0 62 m cos 6...
- Q A wave is turned back when it meets the boundary of the medium in which it is travel ing The wave is said to have undergone 1 reflection 2 interference...
- Q PALTORS Consider two waves traveling through the same medium in the same time frame B Mwm Compare the wavelengths part 2 of 4 Compare the amplitudes part 3 of 4...
- Q he Powerpuff Girls are playing jumping rope Blossom tells Buttercup and Bubbles that they are creating a transverse traveling wave with a function of y x t 4cm 10 63rad...
- Q A positive pulse is sent along a spring A short time later a negative pulse with a smaller amplitude returns Assuming there are no frictional losses which of the following...
- Q 68 Calculate the speed of a wave moving with a frequency of 1242 Hz and a wavelength of 2 07m
- Q TO A 3 m slinky rests on a table with a student holding each end The students laterally shake the ends of the slinky to generate transverse waves The student...
- Q An amusement park ride has a frequency of 0 05 Hz What is the ride s period 20 s O 50 s 0 05 s
- Q A MAN B C D Which letter represents the wavelength OC OD A OB
- Q The two pulses shown below are moving in opposite directions along the same rope When they meet what type of behavior will occur O destructive interference O constructive interference Oreflection...
- Q Which of the following behaviors are evidence that light is a WAVE Choose all that apply O polarization O diffraction Oreflection Ophotoelectric effect Orefraction
- Q The diagram below depicts light reflecting off a planar surface If angle A is a 25 degree angle then the angle of reflection is degrees A
- Q Blue frequencies of light are scattered by molecules in the atmosphere O Dispersion within water causes white light to separate into colors O Red frequencies are scattered the least and...
- Q A beam of electrons is accelerated across a potential of 13 50 kV before passing through two slits The electrons form an interference pattern on a screen 2 00 m...
- Q 1 Which type of radiation alpha beta or gamma more than one is okay a If an atom loses this it will result in the greatest change in atomic number...
- Q 9 Below are monochromatic light rays traveling through three substances A B and C A B C 1st a Rank the speed of light in each of the materials from...
- Q A surface ocean wave has an amplitude of 0 60 m and the distance from trough to trough is 8 00 m It moves at a constant wave speed of...
- Q An astronaut has landed on Planet N 40 and conducts an experiment to determine the acceleration due to gravity on that planet She uses a simple pendulum that is 0...
- Q Why is water a blue green color O Blue frequencies of light are scattered by molecules in the atmosphere Dispersion within water causes white light to separate into colors Red...
- Q art Consider two waves traveling through the ame medium in the same time frame A B Mmm Compare the wavelengths part 2 of 4 Compare the amplitudes part 3 of...
- Q Problem 4 A laser with wavelength 656 nm is incident on a diffraction grating with 1600 lines mm a 15 points Find the smallest distance from the grating that a...
- Q Match the following wave quantities to the mini definition How fast the wave moves through the medium How long the wave is How often the particles vibrate about their fixed...
- Q Select one O a neither reflected nor inverted O b inverted but not reflected O c reflected and inverted O d reflected but not inverted
- Q Like a transverse wave a longitudinal wave has Select one O a amplitude frequency wavelength and speed O b amplitude frequency and wavelength O c amplitude frequency and speed O...
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