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Monochromatic light of wavelength 400 nm and 560 nm are incident simultaneously and normally on double slits apparatus whose slits separation is 0.1 mm and screen distance is 1m. Distance between the areas of total darkness w ...

In the ideal double slit experiment, when a glass-plate(μ=1.5) of thickness t is introduced in the path of one of the interfering beams (wavelength λ), the intensity at the position where the central maximum occurred pr ...

White light is used to illuminate the two slits in a Young's double slit experiment. The separation between the slits is b and the screen is at a distance d(>b) from the slits. At a point on the screen directly in fron ...

Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are ...

A block of mass m attached to a spring of stiffness K and resting on a horizontal plane is given an initial displacement xo towards right and initial velocity vo towards right.What is the amplitude of displacement of the bloc ...

Multiple Correct Choice Follows Two springs of stiffness K1 and K2 are connected in series and then attached to a block. Then , ...

If the plot of velocity and displacement of a particle performing SHM is a circle , what is the time period of the oscillation ? ...

In the above question if the value of 'α' is increased what will happen to the net horizontal force on the wall ? ...

*Image* What is the torque applied on the wall about the point A by the fluid ? The width of the wall is w. ...

Statement I - A uniform ring of mass M is cut into two unequal arcs. Gravitational field produced by these two sections at the centre are same in magnitude. Statement II - Net gravitational field due to the ring at the centre ...

A particle moves in such a way that its potential energy is given as U = -(A/x) + B/x2.A and B are positive constants.What is the equilibrium position of the particle ? ...

In the above question if the particle is dsiplaced slightly from the equilibrium position its motion will be , ...

In the above question if it performs SHM what is the angular frequency ? ...

A tiny particle of mass m is dropped into a pond having liquid whose density is twice as that of the particle.Neglect the effects of sinking time at the surface and viscosity.Which of the following is a possible plot of veloc ...

In the above question what is the plot of distance vs time of the particle if the density of the liquid in the pond is same as that of the particle ? ...

*Image* The the block is given an initial displacement 'A' towards right and released.When moving towards left after that the upper spring is somehow disengaged from the block when the block comes to the mean position ...

In the above question if the upper spring is disengaged when its displacement was (A/2) instead of mean position , what will be the resulting amplitude of motion ? ...

In the above question if the speed of mass m1 is v1 what is the speed of mass m2 ? ...

Two particles of mass m1 and m2 initially at ∞ start moving towards each other due to gravitational force between them. Then they would eventually meet at ...

In the above question if the separation between them at any instant is 's' , what is the relative velocity between them ? ...

A particle oscillates according to the equation x = Asinωt . The magnitude of rate of change of acceleration of the particle is maximum at , ...

B2H6(g)+3O2(g)→B2O3(s)+3H2O(g)+1000kJ(heat) Find the change in internal energy for the reaction if 70 gm of diborane goes for complete combustion at temperature of 400K. ...

The freezing point of 0.1M solution of a sucrose is -1.5°C. If an equal volume of 0.5M sucrose solution is added, the freezing point point of the mixture is(assume m=M) ...

2 moles of an ideal gas is expanded isothermally and reversibly from 1 litre to 10 litre at 300 K. The enthalpy change (in kJ) for the process is ...

For a chemical reaction 3X(g)+Y(g) [eq] X3Y(g), the amount of X3Y at equilibrium is affected by ...

Which of the following will have pH close to 1.0? ...

0.1 mole of CH3NH2 (Kb=5×10-4) is mixed with 0.08 mole of HCl and diluted to one litre. What will be the H+ concentration in solution? ...

Consider the following eqns a) Fe3+(aq)+3e-→ Fe(s) E01 = 0.45 V b) Fe(s)→Fe2+(aq)+2e- E02 = - 0.04 V c) Fe3+(aq) +e- → Fe2+ (aq) E03 =? E03 will be ...

The vapour pressure of pure water at certain temperature is 600 mm of Hg. Equal weights of water and a non volatile solute is mixed and the vapour pressure of solution is 500 mm of Hg. What is the molecular weight of the solu ...

Find the equilibrium constant for the reaction In2++Cu2+→In3++Cu+ Given E0Cu2+/Cu+=0.15V ; E0In2+/In+=-0.40V ; E0In3+/In+=-0.42V ...