Physics question and answers for March 20, 2024
- Q 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 vibrator having...
- Q A beam of light consisting of two wavelengths 500 nm and 400 nm is used to obtain interference fringes in Young s double slit experiment The distance between the slits...
- Q The slits S S is illuminated by a light source Semitting light of wavelength The slits are separated by a distance d A plane mirror is placed at a distance...
- Q Two tuning forks A and B lying on opposite sides of observer O and of natural frequency 85Hz move with velocity 10 m s relative to stationary observer O Fork...
- Q A stone thrown into still water creates a circular wave pattern moving radially outwards If r is the distance measured from the centre of the pattern the amplitude of the...
- Q 2 y a cos kx ot superposes on another wave giving a stationary wave having node at x 0 What is the equation of the other wave 1 a cos...
- Q Q 5 Standing waves are established on a string of length L such that A is a node and B is an immediate anti node Oscillation amplitude for point B...
- Q 23 A child is observing a thin film such as a layer of oil on water shows beautiful colours when illuminated by white light on a rainy day He saw...
- Q Contraction on heating Some rubber like substances contract on heating because transverse vibration of atoms of substance domin over longitudinal vibration which is responsible for expansion
- Q 22 A transverse wave is travelling along a string in the positive x axis then identify the points which have negative particle velocity 1 A 3 C toe B A...
- Q 12 Interference was observed in interference chamber when air was present Now the chamber is evacuated and if the same light is used a careful observer will see a no...
- Q For progressive wave y 2cm sin 3t 4x Statement 1 The particle at x 0 is moving towards positive y axis at t 0 Statement 2 The particle at x...
- Q In an organ pipe with one end closed a standing wave is formed If the wave speed of longitudinal wave is v in the air contained by organ pipe and...
- Q A composition string is made up by joining two strings of different masses per unit length and 4 The composite string is under the same tension A transverse wave pulse...
- Q Which of the following statement s are true about a stationary wave No particle will move with same amplitude All particles between two successive nodes reach their extreme position together...
- Q Q8 A parallel beam of fast moving electrons is incident normally on a narrow sit A fluorescent screen is placed at a large distance from the slit If the speed...
- Q u 2 13 11 A wall is moving with velocity u and a source of sound moves with velocity shown in the figure Assuming that the sound travels with velocity...
- Q The electric field of strength 5kV m and magnetic field of induction 0 25T are crossed and velocity v of a charged particle is also perpendicular to both If the...
- Q Speed of a wave pulse on a 8 m long string fixed at both ends is 20 m s The frequency associated with the third overtone of the string is...
- Q 10 Four different independent i y a sinot iii y a cost 2 waves are represented by ii y a sin2wt iv Y a sin wot of TC 3 With...
- Q Statement I Disturbance in a medium is represented by equation y Statement II Any disturbance represented by y A Brict D is wave 3 2x 3t 3which represent a wave...
- Q A wave is represented by the equation y 10 sin2n 100t 0 02x 10 sin2 100t 0 02x The maximum amplitude and loop length are respectively 1 20 units and...
- Q When vapour condenses into liquid 1 it absorbs heat 2 It liberates heat 3 Its temperature increases 4 Its temperature decreases A travelling wave passes a point of observation At...
- Q Q A standing wave y A sin TX cos 1000nt is maintained in a taut string where y and x are 3 expressed in meters The distance between the successive...
- Q and sounded together with a tuning fork of frequency 100 Hz produces one beat then the frequency of the other tuning fork is 1 102 2 98 3 99 4...
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