Physics question and answers for March 24, 2024
- Q A river narrows at a rapids from a width of 12 m to a width of only 5.8 m. The depth of the river before the rapids is 2.7 m;...
- Q A solid ball of volume V is dropped in a viscous liquid. It experiences a viscous force F. If the solid ball of volume 2V of same material is dropped...
- Q An ocean-going research submarine has a 40.0 cm diameter window 8.90 cm thick. The manufacturer says the window can withstand forces up to 1.0010^6 N. What is the submarine's maximum...
- Q Equation of a longitudinal stationary wave in first overtone mode in a closed organ pipe is y 2 mm sin x cos 2 t Here x is in meter and...
- Q Four traveling waves are described by the following equations where all quantities are measured in SI units and y represents the displacement y 0 12 cos 3x 21t y 0...
- Q A cylindrical tube open at both the ends has a fundamental 1 frequency of 390 Hz in air If th of the tube is immersed 260 Hz vertically in water...
- Q 1 A string vibrate according to the oscillation y 5 sin cos 40 x 1 Where x y are in c m and t is in sec Find the distances...
- Q 5 Write down the equation for a wave travelling along the negative z direction and having amplitude 0 01 m frequency 550 Hz and Speed 330m s How would the...
- Q For aluminium the bulk modulus of elasticity is 7 6 10 N m and density is 2 7 x 10 kg m The velocity of longitudinal wave in aluminium is...
- Q 7 In Young s double slit experiment the separation d between the slits is 2 mm the wavelength of the light used is 5896 and distance D between the screen...
- Q Which of the following colour is scattered most in atmosphere O Red Yellow 01 24 hr min O Indigo
- Q Monochromatic light is refracted from air into the glass of refractive index The ratio of the wavelength of incident and refracted waves is a 1 u c 1 MP PMT...
- Q A cylindrical wave front ABC centred at O symmetric about BE is incident on slits S S BS S O 82 where is wavelength of light used A slab of...
- Q The displacements of two particles executing simple harmonic motion are represented as Y 2sin 10t 8 and y 3cos 10t The phase difference between the velocities of these waves is...
- Q In the given diagram there is a cylindrical can of cross sectional area A and length 0 4m completely filled with liquid of density p It is attached to massless...
- Q When a tuning fork of frequency 341 is sounded with another tuning fork six beats per second are heard When the second tuning fork is loaded with wax and sounded...
- Q A wave whose frequency and amplitude respectively are 100 Hz and 0 01 m is travelling along the string which is stretched with a tension of 50 N If the...
- Q 2 1 A wire stretched between two rigid supports vibrates in its fundamental mode with a frequency of 45 Hz The mass of the wire is 3 5 10 kg...
- Q A wave represented by y 2 sin 3t 4x is reflected from a rarer medium with a loss of 36 of the intensity The equation of the reflected wave is...
- Q Which of the following two wave equations call form stationary wave NCERT Pg 379 i y Acos wt kx ii y Asin wt kx iii y Asin wt kx iv...
- Q 24 A uniform string is clamped at its two ends Its mass per length is given by 20 g m the transverse displacement wave of the string is given by...
- Q A uniform rod of length L is free at one end x L and is subjected to a sinusoidal displacement S S sin ot at the other end x 0...
- Q Sir what s quick approach of this one B A sinusoidal travelling wave of wavelength propagates along positive x axis Three particles 1 2 and 3 in a medium are...
- Q 3 A transverse wave of frequency 250 Hz produced in a stretched string is shown in the figure Displacement of particles 5 cm 5 cm 1 cm 3 teen from...
- Q The horizontal sweep oscillator frequency vertical sweep circuit frequency and the pectrum bandwidth of a 625 line TV system are respectively 50Hz 15625Hz and 7MHz 7MHz 50Hz and 15625Hz 15625Hz...
- Q A stretched string has a mass per unit length of 6 27 g cm and a tension of 16 8 N A sinusoidal wave on this string has an amplitude...
- Q A transverse wave of frequency 250 Hz produced in a stretched string is shown in the figure Displacement of particles 5 cm 5 cm The velocity of wave will be...
- Q A plane sound wave is generated in a medium along the x axis whose equation is given by y A cos ot kx If c is speed of wave in...
- Q A rod of specific gravity 0 7 is found to be stretched by one millimetre when suspended vertically and loaded with a weight of lead of specific gravity 11 the...
- Q object to the image is 28 cm A point is 35 cm along the optical axis from a spherical concave mirror having a focal length 25 cm At what distance...
- Q In a biprism experiment by using light of wavelength 5000 5 mm wide fringes are obtained on a screen 1 0 m away RPMT 2009 from the coherent sources The...
- Q In YDSE the separation d between the slits is 2 mm the wavelength of the light used is 5896 and distance D between the screen and slits is 100 cm...
- Q 3 Nature is quantum 4 Nature of light is tranverse In an experiment the two slits are 0 5 mm apart and the fringes are observed to 100 cm from...
- Q 5 20 cm a Find the amplitude b Find the wavelength cm c Find the period cm d Find the speed of the wave m s Need Help 1 Points...
- Q A string is attached vertically from one end to a vibrator and from the other end to a block of mass m 1 8 kg The power delivered to produce...
- Q When a wave gets refracted in to a denser medium then which of the following property of wave remains unchanged Speed Wavelength sec O Frequency
- Q A transverse wave propagating on the string can be described by the equation y 2sin 10x 300t where x and y are in metres and t in second If the...
- Q One end of a wire is connected to the wave generator ond the other end is connected to a 215 g mass poesed through a spool When the contact point...
- Q In a Young s double slit experiment the slits are separated by 0 38 mm and the screen is placed 1 5 m away The distance between the central bright...
- Q Length of resonance tube is 140 cm How many resonance are possible for wave have wave length cm Length of resonance tube is 150 cm How many resonance are possible...
- Q If the fundamental frequency of a closed organ pipe is 110 Hz If it produces 2 2 Hz bea with an open organ pipe vibrating in the first overtone when...
- Q Two identical wires tied at both the ends under the same tension are oscillating in resonance Find the fractional change in tension of one of the wires to produce 5...
- Q 5 A tuning fork having a frequency of 340 Hz is vibrated just above a resonance tube The height of the tube is 120cm Water is slowly poured in it...
- Q A two conductor transmission line is 10 cm long A sinusoidal signal of 1V peak amplitude is applied to one end of the line If the signal travels on the...
- Q A small block of mass m is placed on a platform that has a rectangular protrusion The block is connected to one end of a light inextensible cord that passes...
- Q A string is stretched between fixed points departed by 75 cm It is observed to have resonant frequencies of 420 Hz and 315 Hz There are no other resonant frequencies...
- Q emits most of its light at a wavelength of 500 nm What wavelengt at the Earth if the star is receding at half the speed of light
- Q nmax A stationary observer receives a sound from 1000 Hz a sound of frequency fo n Hz moving with a constant velocity v 30 m s The apparent frequency varies...
- Q Two strings AB and BC of length 1 meter and 1 2 meter respectively are joined together at end B as shown Point B is the junction of both strings...
- Q 37 A body oscillates with SHM according to the equation x 5 0 os 2 t r At time t 1 5 s its displacement speed and acceleration respectively is...
- Q 35 Equation of motion in the same direction is given by y A sin t kx y2 A sin t kx 0 The amplitude of the medium particle will be...
- Q 28 A boy is walking away from a wall at a speed of 1 0 ms in a direction at right angles to the wall The boy blows a whistle...
- Q 36 Two pulses travel in mutually opposite directions in a string with a speed of 2 5 cm s as shown in the figure Initially the pulses are 10 cm...
- Q A string under a tension of 100 N emitting its fundamental mode gives 5 beats s with a tuning fork When the tension is increased to 121 N again 5...
- Q O Question No 4 O Each Question has FOUR options A B C and D ONLY ONE of these four options is correct O Marking Scheme FULL MARKS 3 Only...
- Q Question Paper Section Wise IV or the correct numerical value using the ne onscreen virtual numeric keypad 1 will be awarded according to the following correct numerical value is entered...
- Q The amplitude of two waves whose resultant is a standing wave is A Find the amplitude of oscillation of the medium particles located at a distance from the node where...
- Q Two vibrating strings of the same material but of lengths L and 2L have radii 2r and r respectively They are stretched under the same tension Both the strings vibrate...
- Q A string of length L 1 meter mass 10 gram is tied between two rigid walls The string is sustaining a standing wave and tension in string is T 100...
- Q A car traveling at 25 m s is approaching a stationary wall Wind is blowing in a direction opposite to car at 5 m s At an instant the car...
- Q 2 The figure below is a representation of a simple harmonic YA progressive wave progressing in the negative X axis at a given instant The direction of the velocity of...
- Q A sout horizontally to the right It is reflected from a large vertical plane surface moving to the left with a speed v The speed of sound in the medium...
- Q A transverse wave on a string travelling along ve x axis has been shown in the figure below VAA The mathematical form of the shown wave is 2 y 3...
- Q A 4 A source of sound S is travelling at 100 3 m s along a road towards a point A When the source is 3 m away from A...
- Q A plane progressive wave of frequency 50Hz travelling along positive x axis is represented as y 5 x 10 5 m sin 1007t at x 0 Wave speed is 300...
- Q propagating along x axis then its velocity will b x and y in meters and t in sec 1 A WIN N W N W 3 m s along ve...
- Q 9 A uniform string of length L is suspended from a point on ceiling A small wave pulse is now introduced at its lowest end and start moving up towards...
- Q Both the strings shown in the figure are made of same material and have same cross section The pulley is light The wave speed of a transverse wave in the...
- Q An observer approaches a stationary source with speed v Which of the following correctly represents the variation of fractional change in observed frequency with speed of observer 1 3 Af...
- Q An object undergoing SHM takes 0 5 s to travel from on point of zero velocity to the next such point The distanc between those points is 50 cm The...
- Q 58 In Young s double slit experiment the fringe pattern is observed on screen placed at a distance D The slits are illuminated by light of wavelength 2 The distance...
- Q 50 The slits in a Young s double slit experiment have equal width and the source is placed symmetrically with respect to the slits The intensity at the central fringe...
- Q 28 Two identical waves each of intensity lo superpose at a point in space Then they are said to be destructively interfering if the resultant I is A equal to...
- Q 47 Two sound sources are moving in opposite directions with velocities and v v Both are moving away from a stationary observer The frequency of both the sources is 900...
- Q A sinusoidal wave travelling on a rope has a period of 0 025 s speed of 30 m s and an amplitude of 0 021525 m At t 0 the...
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