Recently Active Physics Questions

QA particle performs harmonic oscillations along the x axis according to the law x= a cos wt. Assuming the probability P of the particle to fall within an interval from --a to +a to be equal to unity, find how the probabili ...

A particle moves under the influence of the potential V(x) = -Cx^{n}e^{-ax} . Find the frequency of small oscillations around the equilibrium point. ans not given please post workin' . NOTHING MORE mentioned in the question. ...

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A chain of length L and linear mass density \lambda ¸ is held such that it hangs vertically just above the pan of electronic balance. It is then released. What is the reading on the scale, as a function of the height of the ...

*Image* AC-adiabatic ...

The earth bulges slightly at the equator, due to the centrifugal force in the earth's rotating frame. Show that the height of a point on the earth (relative to a spherical earth), is given by h=R\left(\frac{R\omega ^{2}}{6g} ...

A particle moves along the x axis according to the law x = a cos wt. Find the distance that the particle covers during the time interval from t = 0 to t??????????????? ...

TWO IDENTICAL TRAINS ARE MOVING ON RAILS ALONG THE EQUATOR ON THE EARTH IN OPPOSITE DIRECTIONS. WILL THEY EXERT SAME PRESSURE ON THE RAILS? (W.B. BOARD)(3) PLZ PROVIDE NECESSARY JUSTIFICATIONS TO UR ANSWERS......TOMORROW IS M ...

*Image* please solve only the angular acceleration bit! ...

*Image* A rod and a block are of same mass. Initially rod is in horizontal position. What will be acceleration of tip of the rod when system is released from the position. Elaborate your answer. ...

Magnetic dip at a pt is 60°.if the dip circle is rotated through an angle of 90° about its vertical axis,what is the new angle of dip observed? ...

*Image* Ques 1) Find out the net downward thrust on the curved surface of a bucket full of water of height h and radii a and b. Ques 2) A small uniform tube is bent into a circle of radius r whose plane is vertical. Equal vol ...

A diverging lens is placed at origin of coordinate sysytem.eqn of incident ray is y=-x/2+3. The focal length of lens is 4 cm. find eqn of divergent ray... please help....anyone.. *Image* ...

in an insulated vessel,0.05kg steam at 373K and 0.45kg of ice at 253K are mixed .Find final temp of the given mixture. L(fusion)=336J/g L(vap)=2268J/g S(ice)=2100J/kg S(Water)=4200/kg ans given is 273..i am getting 262K my so ...

Why Magnetic force on a current carrying loop in a constant magnetic field is Zero? ...

**deleted** i know some of u may be angry with this act of mine...but i realised my mistake.....sorry again [2] ...

A rod of mass 'M' and length 'l' with end A hinged is lying on smooth horizontal table. A particle of mass 'm' with velocity 'u' strikes at right angle to the other end of the rod. Considering perfectly elastic collision find ...

black body at temp 2880K.energy of radiation emmited by object with wavelength b/w 499nm and 500nm is U1, b/w 999nm and 1000nm is U2,b/w 1499nm and 1500 nm is U3.Then a)U1=0 b)U3=0 c)U1>U2 d)U2>U1 ...

Two identical charges of magnitude +Q are fixed along the X-axis. A third charge −Q is placed midway between them at point P. Then small displacements of −Q are made in the directions indicated by the unit vectors. The ∠...

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*Image* In Young's double slit exper., slits are horizontal. The intensity at a point P shown in fig. is 3/4 I0, where I0, is the max. intensity. Then the value of \theta is, (Given the distance between the two slits S1 and S ...

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The path of one projectile as seen from others is a straightline. IF UR ANS> IS TRUE OR FALSE please with sufficient explanation mention how ...

A steady currentflows in metallic conductor of non uniform crossection.Quantity which are constant along length opf wire a)drift speed b)current ans is curent but how cna it be true becoz I=ne2AEÏ„/m ...

y1=A(cos0.5Ï€x-100Ï€t) y2=A(cos0.46Ï€x-92Ï€t) Q Speed of sound my doubt is that cna we calulate speed of sound dorectly using any of waves or should be write superimposed eqn first and then do claculation part ?? thouggh in t ...

open pipe is in resonance in 2nd harmonic with frequncy f1.Now one end is closed and frequncy is increasd to f2 such taht resoance is in nth harmonic.Find n and relation b/w f2 and f1 ...

Assuming 200 MeV of energy is released for fission of Uranium atom , find the number of fissions per second required to realease 10 kilowatt power. ...

In a simple fixed pulley system, two unequal masses m1 and m2 are connected by a light string passing over a light fixed pulley. the larger mass is stopped for a momment 2 secs after the system is set into motion. Find the ti ...

300g of water at 25C is aded to 100g ice at OC.Final temp of mix is ?? ...

*Image* please solve above two questions. ...