Physics question and answers for March 22, 2024
- Q Transverse waves are possible in solids only because 1 They can sustain to compressive stress 2 They can sustain to longitudinal stress 3 They can sustain to shearing stress 4...
- Q A transverse wave is travelling along a string from left to right The figure below represents the shape of the string at a given instant At this instant among the...
- Q ong answer Please clarify what is wrong in my solution 12 A black body is at a temperature of 5760 K The energy of radiation emitted by the body at...
- Q An object of mass m is attached to a spring of spring constant k and moves on a frictionless horizontal surface The mass is at X 0 where the spring...
- Q Question No 37 The two waves having intensities in the ratio 1 9 produce interference The ratio of the maximum to the minimum intensities is equal to O 81 1...
- Q A uniform string of length L and mass m is fixed at both ends under tension T then it can vibrate with frequency given by f O f f 3...
- Q The intensity of sound reduces by 20 on passing through a glass slab If sound of intensity is made to cross through two such slabs then the intensit of emergent...
- Q A source of sound produces waves of wavelength 0 80 m in air The same source of sound produces waves of wavelength 4 0 m in water If the velocity...
- Q energy Q No 6 View In English A string of mass 0 2 kg and length 2m is tied at two ends to fixed supports under a tension of 10...
- Q 7 The frequency changes by 10 as the source approaches a stationary observer with constant speed us What would be the percentage change in frequency as the source recedes the...
- Q 14 An open pipe of sufficient length is dipping in water with a speed u vertically If at any instant I is length of tube above water Then the rate...
- Q 7 3 3 14 13 Identical wires A and B of different materials are hung from the ceiling of a room The density of wire A is greater than the...
- Q 15 A 10 W source of sound of frequency 1000 Hz sends out waves in air The displacement amplitude at a distance of 10 m from the source is speed...
- Q 17 A wave pulse on a string has the dimension shown in figure The wave speed is v 1 cm s If point Ois a free end The shape of...
- Q 16 The amplitude of a wave disturbance propagating in positive x axis is given by y at t 0 and y 1 1 x 1 1 1 x 2 at...
- Q 8 When a source of sound of frequency f crosses a stationary observer with a speed us speed of sound v the apparent change in frequency Af is given by...
- Q r 10 A transverse wave y 0 05sin 20nx 50nt in metres is propagating along ve X axis on a string A light insect starts crawling on the string with...
- Q 3 In an experiment it was found that string vibrates in n loops when a mass M is placed on the pan What mass should be placed on the pan...
- Q In given diagram calculate value of x for which intensity at point P is equal to intensity at point O S and S are coherent sources O 3D O2D 0...
- Q A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance 1 21 between them The wavelength of the standing wave is 1 1...
- Q The length of the string of a musical instrument is 90 cm and has a fundamental frequency of 120 Hz Where should it be pressed to produce fundamental NEET 2020...
- Q E B C The electric field associated with an em wave in vacuum is given by E 140 cos kz 6 x 108t where E z and t are in...
- Q Y 0 37 sinx 9x 1001 and y2 0 37 sin a 9x 100t n 9 where y V2 and x are in meters and it is in seconds When...
- Q A transparent cylinder has its right half polished so as to act as a mirror A paraxial light ray is incident from left that is parallel to principal axis exits...
- Q 8 A transverse wave in x y plane along positive x axis at t 0 is represented as YA A B X C A B C and D are four...
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