Phasors
Trending Questions
Q. The position co-ordinates of an object are given by {x=2t^2, y=t^2-4t, z=3t-5. The average { velocity of the particle during the interval 0-1s is
Q. 8. A progressive wave Y=asin(kx- wt) is reflected by rigid wall at X=0. Then the reflected wave can be represented as A)Y=asin(kx+wt) B)Y= acos (kx +wt) C)Y=-asin(kx +wt) D)Y=-asin (kx-wt)
Q. the motion of a particle along a straight line is described by equation x=2+12t-t^2, where x is in m and t is in s. The retardation of the particlr when its velocity becomes zero is
Q. he ratio of maximum particle velocity to wavevelocity is \lbrack where symbols have their usualmeanings(1) kA(2) Ao(3) ko
Q. 19.Three waves Y1 = asin(wt-kx), Y2 = Asin(wt-kx+h) and Y3 = Asin(wt-kx+2h) are superimposed so that Y1+Y2+Y3 = 0 at all positions. Then the value of h is
Q. A particle moves along x-axis such that its velocity (v) varies with time (t) as v = (4t – t2) m/s. The distance travelled by the particle from t = 0 to t = 6 s is
Q. 4)4T12) A wave represented by the equation y acos(kx - ot) is superposed with another wave to form a stationanwave such that the point x 0 is a node. The equation for the other wave is(1) asin(kx + ot)(3)-acos(kx -
Q. The equation of standing wave in a stretched string is given by y=5 sin(pi x/3)cos(40pi t) where x and y are in cm and t in second the separation between two consecutive nodes is (in cm)
Q. A particle executes linear SHM of amplitude A along x− axis. At t=0 the position of the particle is x=A2 and it moves along +x direction. Find the phase constant (δ) if the equation is written as x=A sin(ωt+δ)
- 60∘
- 30∘
- 120∘
- 150∘
Q. What is phase angle in waves
Q.
A particle moves with a uniform speed of 2 m/s in x – y plane according to the equation y = 4x2, where x and y are in metre. The acceleration of the particle along y-axis while passing through the origin has magnitude
| 2 m/s2 |
| 4 m/s2 |
| 16 m/s2 |
| 32 m/s2 |
Q. A-velocity displacement graph of a particle moving in straight line is shown . Magnitude if accln is max at A. R-accln of particle is const
Q. 130. the velocity time equation of a particle moving in a straight line v=2t-4 when t≤2 secs and v=4-2t when t≥2secs the distance travlled by the particle in the time interval between t=0 to t=4secs is?
Q. A particle moves with a uniform speed of 2 m/s in x – y plane according to the equation y = 4x2, where x and y are in metre. The acceleration of the particle along y-axis while passing through the origin has magnitude
Q. How to find phase difference in standing wave.
Q. 23. The equation of standing wave in a stretched str in 5 sin| TX |cos(40) , where x and is given y are in cm and t in second. Th between two consecutive nodes is (in cm) 3 e separation (2) 3 (3) 6
Q. A particle moving with kinetic energy E, has de-Broglie wavelength λ. If energy ΔE is added to it, the wavelength become λ/2. The value of ΔE is,
- 3E
- E
- 2E
- 4E
Q. Path difference between the two waves reaching a point is 11lambda. What do we get Maxima or minima
Q. The equation of a stationary waveisurfacengV 2Asin/ nctWhich of the following statements is incorrect. .(1) The unit of ct is same as that of λ (2) The unit of x is same as that of λ coSaccan2TX12.(3) The unit ofis same as that of TeatV4) The unit of즛is same as that ofed
Q. The displacement-time(x−t) graph of a particle undergoing simple harmonic motion is shown below. The acceleration of the particle at t=43s is
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/975529/original_original_29.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/975529/original_original_29.png)
- √332π2 cm/s2
- −π232 cm/s2
- π232 cm/s2
- −√332π2 cm/s2
Q. 23.If the particle is moving with a velocity v= i+tj m/s where i and j are unit vectors along x and y axes and t is time then equation of path followed is?
Q. A particle moves a distance x in time t according to equation x = (t + 1)−3. The velocity is written in terms of distance x as where a and b are constants. Then,
Q. what is s†an ding waves and how to find them ?
Q. Assertion: Time taken by a particle executing SHM of amplitude A to move from x=A to x=√3A2 is same as the time taken by the particle to move from x=√3A2 to x=A2.
Reason: Corresponding angles rotated in the reference circle are same in the given time intervals.
Reason: Corresponding angles rotated in the reference circle are same in the given time intervals.
- If both assertion and reason are true and the reason is correct explanation of the assertion.
- If both assertion and reason are true but reason is not the correct explantion of assertion.
- If assertion is true but the reason is false.
- If assertion is false but the reason is true.