Recently Active Physics Questions

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*Image* length of the rod =2l mass=M ant hit the rod with V=3m/s at a distance 2l/3 from the string T2 , which string will broken???? ...

A steel wire of diam...d , area A and length 2l is clamped firmly at two points a and b which are 2l apart and in the same plane.A body of mass m is hung from the middle point of wire such that the middle point sags by x lowe ...

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*Image* I heat a the string of a pendulum .... Definitely it's time period will change ...... it will increase ... but will the time lost in one day be the same as the time lost in 1 week ..... If no how do i calculate it ... ...

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An ice piece is floating in a vessel containing water, with in ice piece on metal piece also exist. Given that density of metal piece is greater than density of water, when ice melts completely then initial level of water in ...

While reading Fundamentals of Physics by Resnick Halliday.. I encountered a particular Explanation on pg 527 that I haven't understood properly.. It is given that the electric field of a dipole decreases more rapidly with dis ...

1. A young s double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen............ ans given: straight line But is it not hyperbola(the actual shape)..or else the close obser ...

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A particle is moving along x-axis as ; where x is in m, t in second, a = 1; b =- 3, c = 2, distance cover by particle from t = 1 to t = 2, (A) 0.5 m (B) zero (C) 2 m (D) None ...

No work is done by a force on an object if (a) the force is always perpendicular to its velocity (b) the force is always perpendicular to its acceleration (c) the object is stationary but the point of application of the force ...

When a screw guge is completely closed , zero of circular sclae is 7 diovisions above the reference line of graduation . If L.C. of screw gauge is 10-3 cm , the zero error is?? a) -7*10-3cm b)+7*10-3cm c)-0.007mm d)+0.007mm ...

A object is kept at a point (40,20√3) in front of a concave mirror of radius=20. find magnification of image. (its not just 1/v+1/u=1/f !!!!) ...

A straight glass tube with its lower end sealed has a length \ell=152\ \mathrm{cm} . The lower half contains one mole of an ideal diatomic gas. The top half contains mercury and the top of the tube is open to atmosphere (atmo ...

a spool consists of a cylindrical core and 2 identical heads. the core rolls without slipping along a rough horizontal block with a constant velocity `v`. the radius of the core is `r` and that of the heads is `R`. what insta ...

1. *Image* AJ=40cm.when R1&R2 are interchanged ,AJ'=30cm.thenAB= a.70cm b.75cm c.100cm d.125cm 2. *Image* the potential at A is 3 times the e.m.f of 1 of the cells.the ratio of the two emfs a.2:1 b.3:1 c.4:1 d.5:1 3. *Image* ...

1. *Image* Va=?a.2V b.0V c.-2V d.0.5V . 3. *Image* the ratio of resistance accross AB with switch open&closed is a.1:3 b.3:1 c.1:1 d.1:2 ...

A very long uniformly charged theread oriented along the axis of a circle of radius R rests on its centre with one of the ends. The charge of the thread per unit lengt is equal to λ. Find the flux of the vector E across the ...

wat is multimeter found dis in aieee syllabus someone say iska kaam kya hai ...

A 2 kg block slides on a horizontal floor with a speed of 4m/s. It strikes a uncompressed spring, and compresses it till the block is motionless. The kinetic fricion force is 15 N and spring constant is 10,000 N/m. The spring ...

i have a doubt that why does maximum appers at asinθ = (n + 1/2)λ ?? please yaar koi batao and why intensity decreases ... as n increases .. ...

A radius vector of a particle varies with time r=at(1-αt) where a is a constant vector and α is a positive quantity The time interval Δt taken by the particle to return to the initial points, and the distance s covered dur ...

a massive sphere is fitted into a light rod. when will the rod fall faster; is it is placed vertically on end A or end B ?the end of the rod on ground des not slip *Image* ...

Refractive index of the ionosphere is:_ a)0 b)les than 1 c) one d) more tahn one ...

When u lift a box from the floor and put it on an almirah the potential energy of the box increases,but there is no change in its kinetic energy. Is it a violation of the conservation of energy ? ...

A balloon is filled with CO2 , then for sound wave this will behave as a:- a)converging len b)diverging lens c)both of theaove d)none of the above ...

your xamination last for 3.5 hrs hw long will an observer movin at v=.8c ..........say it last ?? ...

Tell me why this is said?---explain "In case of stable equilibrium,the centre of mass goes higher on being slightly displaced.For unstable equilibrium it goes lower and for neutral equilibrium it stays at the same height." ...