Physics question and answers for March 22, 2024
- Q 3 581 nm waves 5 The light y 10 sin cot kx interfere The ratio of maximum to minimum average intensity of light in interference pattern is 2 1 3...
- Q TX At certain instant the shape of a simple train of ple wave is y 12 sin x and y are in cm The velocity of the wave 50 propagation...
- Q The tension length diameter and density of a string B are double than of another string A Which of th following overtones of B is same as the fundamental frequency...
- Q A proton accelerated through a potential difference V has a certain de Broglie wavelength In order to have the same de Broglie wavelength an a particle must be accelerated through...
- Q Refer to figure 2 The ball then lands in a fast moving river barely floating in water The ball now travels down stream with a velocity of 10 0 m...
- Q A travelling sound wave is described by the equation y 2 sin 4t 5x where y is measured in centimeter t in seconds and a in meters a Find the...
- Q Test 4 Code A 7 In a sinusoidal wave the time required for a particular point to move from maximum displacement to zero displacement is 0 2 s The frequency...
- Q The audible frequency for a normal human being is 20Hz to 20kHz Fuind the corresponding wavelengths if the speed of sound in air 320m s b Find the phase difference...
- Q 22 A sonometer wire supports a 4 kg load and vibrates in fundamental mode with a tuning fork of frequency 416 Hz The length of the wire between the bridges...
- Q Marks 31 In the given arrangement shown in figure a mass M is suspended with the help of string which passes over a light pulley The string is connected to...
- Q moving 0 with re The served ms 5 Re 20 A source of unknown frequency gives 4 beats s when sounded with a source of known frequency 250 Hz The...
- Q 2 Two tuning fork when sounded together gives 4 beats per second Frequency of fork A is 248 Hz Now tuning fork Bis waxed due to which beat frequency is...
- Q A transverse wave is passing through a string shown in figure Mass density of the string is 1 kg m and cross section area of string is 0 01 m...
- Q Fundamental frequency of a stretched sonometer wire is f When its tension is increased by 96 and length decreased by 35 its fundamental frequency becomes n f When its tension...
- Q The distance between the slit and bi prism and between the prism and screen are 50 cm each The angle of prism is 179 and its refractive index is 1...
- Q In fresnel s biprism experiment a mica sheet of refractive index 1 5 and thickness 6 x 10 6 m is placed in the path of one of interfering beams...
- Q 8 Phase difference at the central point changes by 1 3 when a thick film having refractive index 1 5 and thickness 0 4 m is placed in front of...
- Q 5 Two beams of light having intensities I and 41 interfere to produce a fringe pattern on a screen The phase difference between the beams is 2 at point A...
- Q A source of sound S and a detector D are placed at some distance from one another A big cardboard is placed near the detector and perpendicular to the line...
- Q A source of frequency f is stationary and an obsercer starts moving towards it at t C with constant small acceleration Then the variation of observed frequency f registered by...
- Q For the travelling harmonic wave y x t 2 os2 10t 0 008x 0 35 where x and y are in cm and t is in s The phase difference...
- Q A heavy string is tied at one end to a movable support and to a light thread at the other end as shown in figure 15 E12 The thread goes...
- Q The x y co ordinates of the corners of a square plate are U edges of the plate are clamped and transverse standing waves are set up in it If...
- Q Two point sound sources S and S are both of the same power and send out sound waves in the same phase The wavelength of both the waves is 48...
- Q 71 In Fig 2 99 if a parallel beam of while light is incident on the plane of the slits then the distance of the nearest white spot on the...
- Q 2 A fish in an aquarium approaches the left wall at a rate of 3 ms 1 and observes a fly approaching it at 8 ms 1 If refractive index...
- Q 17 When a wave travels in a medium displacement of a particle is given by y a sin 2 bt cx where a band care constants The maximum particle velocity...
- Q For an amplitude modulated wave the maximum amplitude is found to be 10V while the minimum amplitude is found to be 2V Determine the modulation index What would be the...
- Q Two identical waves each of frequency 10Hz are traveling in opposite directions in a medium with a speed of 20 cm s The distance between adjacent nodes is
- Q A sonometer has two strings stretched side by side parallel to each other The two strings are made of the same metal and have uniform cross sections of radii r...
- Q 5 A mica strip and a polysterene strip are fitted on the two slits of a double slit apparatus The thickness of the strips is 0 50 mm and the...
- Q Two coherent radio frequency point sources separated by 2 0 m are radiating in phase with A 1 0m A detector move in a circular path of large radius around...
- Q 1 The equation of a plane progressive wave is y 0 02 sin 87 1 2 When it is reflected at a rarer 20 medium its amplitude becomes 75 of...
- Q Q 19 A white light ray is incident on a glass prism and it creates three refracted rays A B C and one reflected ray D Select the correct alternative...
- Q 5 Four simple harmonic vibrations 05 601 1 2 V 8 cos oot V2 4 cos V3 2 cos t n V4 cos cos tot 377 are superposed on 2...
- Q 30 A 50 cm long wire of mass 20 g supports a mass of 1 6 kg as shown in figure Find the fundamental frequency of the position of the...
- Q 5 The speed of transverse wave giving on a wire having a length 50 cm and mass 5 0 g is 80 m s The area of cross section of...
- Q The length of the wire between two ends of a sonometer is 100 cm What should be the positions of two bridges below the wire so that the three segments...
- Q A point object is placed at a distance of 20 cm from 4 20cm a thin plano convex lens of focal length 15 cm If the B plane surface is...
- Q 149 An engine moving towards a wall with a velocity 50 m emits a note of 1 2 kHz The speed of sound in air is 3 m s The...
- Q The first resonance length of a resonance tube is 40 cm and the second resonance length is 122 cm the third resonance length of the tube will be Question Type...
- Q Go to Ove Pleas Sec QNO 11 Correct Answer 4 Status unattempted Full Paper 2 The equation of a simple harmonic wave is given by y 3 sin 50t x...
- Q In a sonometer wire When the tension is maintained by suspending a 20 kg mass from the free end of the wire the fundamental frequency of vibration is 300 Hz...
- Q 4 In a Young s double slit experiment the fringes are displaced by a distance x when a glass plate of refractive index 1 5 is introduced in the path...
- Q 1 In Young s double slit experiment how many maximas can be obtained on a screen including the central maximum on both sides of the central fringe if 2000 and...
- Q A wave pulse on a string has the dimensions shown in figure The wave speed is v 1 cm a If point O is a fixed end draw the resultant...
- Q In YDSE with two identical slits when upper slit is covered with a transparent sheet of mica second order minima is observed above the centre of the screen and second...
- Q 3 A block of mass m 2 kg is attached to a spring with spring constant k 20 N m The block was pulled a distance A 5 cm from...
- Q Question No 69 Single Correct A A A wave is represented by y Asin kx wt o The amplitude and wavelength of wave is given by A 2A B C...
- Q A wave is represented by y Asin kx wt p The amplitude and wavelength of wave is given by 2A A 2T k 2T k Single Correct A A A...
- Q An earthquake generates both transverse S and longitudinal P sound waves in the earth The speed of 5 waves is about 6 km s and that of P waves is...
- Q A In a stationary wave represented by y 2a sin kx cos wt the intensity at a certain point is maximum when B cos kx is maximum cos kx is...
- Q A block M hangs vertically at the bottom end of a uniform rope of constant mass per unit length The top end of the rope is attached to a fixed...
- Q Q79 In a diffraction pattern due to a single slit of widt a the first minimum is observed at an angle 30 whe light of wavelength 5000 is incident on...
- Q A glass prism 1 5 is dipped in water 4 3 as shown in figure A light ray is incident normally on the surface AB It reaches the surface BC...
- Q y a cos kx wt superposes on another wave giving a stationary wave having node at x 0 What is the equation of the other wave Question Type Single Correct...
- Q 4 At what temperature will the speed of sound in air becomes 3 times of its value at 0 C NCERT XI Pg 391 1 1184 C 3 2184 C...
- Q ar A fish in an aquarium approaches the left wall at a rate of 3 ms observes a fly approaching it at 8 ms 1 If refractive index of water...
- Q If the length of the string is L then its first end can be de as x L Ju This relation gives the expression for th V nv 2L n...
- Q A person wears glasses of power 2 5D What is the far point of the person without the glasses Question Type Single Correct Type 1 2 3 4 40 cm...
- Q There is a cylindrical vessel of cross sectional area 20 cm and length 1m is initially filled with water to a certain height as shown There is a very small...
- Q 0 Figure shows a graph of particle displacement function of x at t 0 for a longitudinal wave travelling in positive x direction in a gas A B C D...
- Q Sinusoidal waves travel on five identical strings Use the mathematical forms of the waves given below n the expressions given below x is in m and y is in millimeters...
- Q A plane progressive wave of frequency 50 Hz travelling along positive x axis is represented as y 5 x 10 5 m sin 100nt at x 0 wave speed is...
- Q A body execute SHM according to equation x 10 cos 2 t 4 At t 3 2 s what is speed of the particle NCERT Pg 339 1 10 ms...
- Q 4 Young s experiment is performed with light of wavelength 6000 wherein 16 fringes occupy a certain region on the screen If 24 fringes occupy the same region with another...
- Q For the arrangement shown in the fig the tension in the string is 1 Question Type Single Correct Type 2 3 4 6 N 6 4 N 0 4 N...
- Q 44 Two sonometer wires of the same material have equal tension If the ratio of their lengths is 2 1 and the ratio of their cross sectional radii is 1...
- Q Travelling sinusoidal transverse wave is present on a string which is spread along x axis Acceleration of particle at x 0 and particle at x 2 cm are shown Both...
- Q Ari is sitting near a loud speaker that emits sound of frequency 606 9 Hz Max pushes another loud speaker towards Ari at 3 m s emitting a sound of...
- Q In YDSE interference pattern produced by two identical slits the intensity at the site of the central maximum is I The intensity at the same spot when either of two...
- Q 31 A transverse wave is expressed by the equation y 10 sin 2n 0 1 sec The wavelength of the wave is B 100 cm 100 2 C A 10...
- Q A stretched wire of length 114 cm is divided into three segments whose frequencies are in the ratio 1 3 4 the length of the segments must be in the...
- Q The number of possible natural oscillations of air column in a pipe closed at one end of length 85 cm whose frequencies lie below 1250 Hz are velocity of sound...
- Q Question No 21 Phy Section A This section contains 35 SINGLE CORRECT TYPE questions Each question has 4 choices 1 2 3 and 4 out of which only one is...
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