Physics question and answers for March 21, 2024
- Q A string of mass 1kg length 1m connected to a block of mass 2kg Block is pulled by a force of 6N There is no friction anywhere A pulse is...
- Q In Young s double slit experiment the phase difference between two waves reaching at a point is 3 The intensity of this poin expressed as a fraction of maximun intensity...
- Q A loud speaker L is placed in long narrow hall with two doors D and D open to the very long playground as shown in figure The distance D D...
- Q 9 An ideal gas in a container of dimension 1 If v is velocity of a molecule of the gas the colliding frequency on the wall of container is 1...
- Q 8 Two tuning forks A and B made of same material are slightly out of tune and produce beats of frequency 7 Hz When B is slightly filed the beat...
- Q The figures represent two snaps of a travelling wave on a string of mass per unit length 0 25 kg m The two snaps are taken at time t 0...
- Q In a string transverse wave speed is 100 m s and frequency is 500 Hz and amplitude is 2 x 10 2 m Its wave equation is Y 2 x...
- Q A tuning fork of known frequency is held at the open end of a long tube which is dipped into water Th tuning fork of frequency 165 Hz resonates for...
- Q 5 For the same objective what is the ratio of the least separation between two points to be distinguished by a microscope for light of 5000 A and electrons accelerated...
- Q Sound waves travel at 350 m s through a warm air and at 3500 m s through brass The wavelength of a 700 Hz acoustic wave as it enters brass...
- Q In a two slit experiment with monochromatic light fringes are obtained on a screen placed at some distance from the plane of slits If the screen is moved by 5...
- Q mn 36 Young s experiment is performed with light of wavelength 6000 A wherein 16 fringes occupy a certain region on the screen If 24 fringes occupy the same region...
- Q a 0 174 nm c 0 174 m d 0 174 x 10 m 54 In a Young s double slit experiment let S and S be the two slits...
- Q 24 180 The minimum phase difference between minima of displacement wave and minima of pressure wave in the propagation of longitudinal wave is Zero EIN T 3x Solution Answer 2...
- Q mtG Objective NCERT P 32 In a double slit experiment the distance between the slits is d The screen is at a distance D from the slits If a bright...
- Q The a c wavelength of light used in the experiment is 6 x 10 m b 3 x 10 m d 5 x 10 m 1 5 x 107 m...
- Q d conservation of energy does not hold good Two slits are made one millimeter apart and the screen is placed one metre away The fringe separation when blue green light...
- Q which is stretched over a sonometer The bridge of the sonometer is 40 cm apart when the wire is in unison with a tuning fork of frequency 256 When the...
- Q 34 Frequency of oscillation of a body is 5 Hz when a force F is applied and 12 Hz when another force F is applied If both forces F and...
- Q a Progressive of wave 3 Which of the following equations represents a transverse wave travelling along y axis 1 x A sin wt ky 3 y A sin wt kx...
- Q An interference is observed due to two coherent sources A and B having phase difference zero separated by a distance 42 along the y axis where is the wavelength of...
- Q A ray of light strikes a transparent rectangular slab of refractive index 2 at an angle of incidence of 45 The angle between the reflected and refracted rays is a...
- Q The displacement of the medium in a sound wave is given by the equation y Acos ax bt where A a b are positive constants The wave is reflected by...
- Q A stretched string of length 4 m vibrates in 6 loops The distance between consecutive antinodes is 113 3 6 m 4 m
- Q 19 In a Young s double slit experimental arrangement shown here if a mica sheet of thickness t and refractive index u is placed in front of the slit S...
- Q The displacement of a wave disturbance propagating in the positive x direction is given by y 1 1 x at time t C and y 1 1 x 1 at...
- Q 6 Two waves passing through a region are represented by y 1 0 cm sin 3 14 cm x 157 s t and y 1 5 cm sin 1 57...
- Q 18 180 Mark for Review 1 02 57 hr min Which among the following statements is incorrect In interference all maxima are equally intense but in diffraction they are of...
- Q Particle nature of light is exhibited by O Diffraction and interference O Diffraction and refraction
- Q A wire of linear density 8 x 10 3 kg m and length 2 m is stretched by a weight of 20 kg The fundamental frequency of vibration of the...
- Q ma Young s double slit experiment 12 fringes are observed to be formed in a certain segment of the screen when light of wavelength 600 nm is used If the...
- Q b The displacement y of a point on a vibrating stretched string at a distance x from one end at time t is given by a y 0 y at...
- Q A chord attached to rigid supports is vibrating into 6 loops when its tension is 36 N The tension at which i will vibrate in 4 loops is frequency is...
- Q The displacement represented by y x t a cos kx wt represents 1 Transverse wave propagating in x direction Transverse wave propagating in x direction 3 Longitudinal wave propagating in...
- Q When two coherent waves interfere there is 1 Loss in energy 2 Gain in energy 3 Redistribution of energy which changes with time 4 Redistribution of energy which does not...
- Q How many number of maximas are formed on a finite screer in Young s double slit experiment given slit screen separation as 1 meter separation between slits 3 mm and...
- Q In the arrangement shown in the figure below an object of mass m 2 0 kg hangs from a cord around a light pulley The length of the cord between...
- Q A string of length 0 5 m and mass 20 gm is tied both ends When it vibrates in its 4th harmonic it produce equal number of beats per second...
- Q 3 Speed of a transverse wave on a straight win mass 6 0 g length 60 cm and area of cross sectio 1 0 mm is 90 ms 1 If...
- Q A wave 10 sin ax bt is reflected from dense medium at an origin If 81 of energy is reflected then the equation of reflected wave is 8 1 sin...
- Q X a sin ot X2 a sin wt If in the resultant wave the frequency and amplitide remains equals to amplitude of superimposing waves Then phase diff between them 2...
- Q In Maxwell s distribution curve if we increase the temperature and molecular weight both by the same factor the curve A Spreads out Becomes mor stoonor d
- Q Which of the given functions is a wave function displacement y x position t time A a b are constants 1 y A sin ax bt y A sin ax...
- Q 7 A uniform thread of linear mass density 2 0 g m passes through a fixed ideal pulley At its ends the thread is stacked into two heaps that do...
- Q An acoustic wave given by y Asin wt kx is sent down a long string Upon reflection from one end the equation of reflected wave becomes A sin wt kx...
- Q A 5 kg weight suspended vertically by a string vibrates with amplitude of 7 5 cm and a frequency of 60 oscillations per minute Find i Spring constant ii Maximum...
- Q When the diffraction pattern from a certain slit illuminated with laser light lambda 6330 angstrom is projected on a screen 150cmfrom the slit the second minima on each side are...
- Q 6 7 8 9 10 In the diagram the phase difference between points A and D is 2 A B D 1 x X 2 C 2 1 8 2...
- Q Sound waves from different source are interfering and pressure at some point in space is given as P Posin 200 t 2 os 3 t 3 The frequency of one...
- Q block with a speaker bolted to it is connected to a spring having spring constant k 45 0 N m as shown in the figure below The total mass of...
- Q 05 34 IlmA VIV t ms 10 15 20 12 The given graph shows variation with time in the source voltage Vand steady state current I drawn by a series...
- Q Light of wavelength 624 nm is incident perpendicularly on a soap film n 1 33 suspended in air What are the a least and b second least thicknesses of the...
- Q 21 In a stretched string 1 Only transverse waves can exist 2 Only longitudinal waves can exist 3 Both transverse and longitudinal waves can exist 4 None of these
- Q Intensity of a sound wave gets reduced by 20 on passing through a slab The reduction in intensity on passage through two such consecutive slabs is Question Type Single Correct...
- Q During propagation of a plane progressive mechanical wave which one is INCORRECT Question Type Single Correct Type 1 all the particles are vibrating in the same phase 2 amplitude of...
- Q A transverse wave is travelling through a string of a mass per unit length 100 g m The tension in the string is 10 N If the equation of the...
- Q In a standing wave on a string rigidly fixed at both ends 1 all the particles must be at their positive extremes simultaneously once in half of the time period...
- Q Parallel beam of light of wavelength 500nm falls on two narrow slits placed a distance d 25 x 10 4 cm apart at an angle 30 relative to the slits...
- Q 165 Two waves each of intensity io and wavelength 0 2 m starts from sources A and B and meet at point P as shown in the figure If AP...
- Q 4 In all of the above conditions 159 A y travelling wave pulse is given m then 20 4 x 4 1 The pulse is travelling along negative x axis...
- Q same ng in open pe is d per de is asing ives 3 e last Hz duces may be a 420 Hz c 440 Hz b 430 Hz d 450...
- Q 5 s For waves propagating in a medium identify the property that is independent of the others 1 Velocity defenes in medin 2 Wavelength 3 Frequency 4 All these depend...
- Q A horizontal beam of laser light of wavelength 517 nm passes through a narrow slit that has width 0 0570 mm The intensity of the light is measured on a...
- Q Gravitational field at the centre of the semicircle formed by a thin wire AB of mass M and length is 2 GM 1 along x axis e 3 4 GM...
- Q A composite string is made up by joining two strings of different masses per unit length and 4 respective The composite string is under the same tension A transverse wave...
- Q In a sonometer experiment the string of length under tension vibrates in second overtone between two bridges The amplitude of vibration is maximum at L 2L 5L a LLL b...
- Q Example 15 2 A wave travelling along a string is described by y x t 0 005 sin 80 0 x 3 0 t in which the numerical constants are...
- Q A string is stretched along the x axis There is a transverse disturbance along the string x t 4 sin cos 10 t cm where x is measured in centimeter...
- Q The time period of a spring pendulum on earth is T If it is taken on the moon and made to oscillate the period of vibration will be 1 Less...
- Q A thin string is held at one end and oscillated vertically so that y x 0 t 8 sin 4t cm Neglect the gravitational force The string s density is...
- Q Y 4 Sin 400 t and y 3 Sin 404 nt are the equation of displacements of two progressive waves interfering at x 0 The frequency of variation of amplitude...
- Q In Young s double slit experiment using the light of wavelength X 60 fringes are seen on a screen If the wavelength of light is decreased by 50 then the...
- Q up A standing wave is set up in a string of variable length and tension by a vibrator of variable frequency Both ends of the string are fixed When the...
- Q A wave is propagating along x axis The displacement of particles of the medium in z direction at t 0 P x 2 where x is meters At t 1s...
- Q The figure shows an instantaneous profile of a rope carrying a progressive wave moving from left to right then a the phase at A is greater than the phase at...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!