Recently Active Physics Questions

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stet1: q ptle of mass M is projected with velocity V making 45degres with horizontal at d highest pt of its path , d magnitude of its angular momentum abt d pt of projection is MV^3/ 2g stat:2- Lvector+RvecXPvecr state2- a he ...

*Image* Be serious enough to answer this .. if u know then only answer . . i don't know the answer .. u gotta give me that with explanation .. ...

1) A moving hydrogen atomin ground state, causing radiation of several wavelengths, the longest of which is 1880 nm. From the consideration of the loss in KE in collision, what is the velocity above which the atom has to move ...

The equations of 2 waves r, y1=acos(0.5Ï€x-100Ï€t) y2=acos(0.46Ï€x-92Ï€t). Find: (i)Number of times intensity is max in a time interval of 1 sec. (ii)No. of times y1+y2=0 at x=0 in 1 sec. ...

find the internal energy of a room with dimensions 3mx4mx5m. ...

ratio of the speed of sound in nitrogen to helium at 300 K is? ...

A string of negligible thickness is wound around a cylinder on a rough surface, several times.A man standing at a distance l from the cylinder holds one end of the string . THere is no slipping,find the length of string passi ...

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Four snails travel in uniform, rectilinear motion on a very large plane surface. The directions of their paths are random, (but not parallel, i.e.any two snails can meet), but no more than two snail paths can cross at any one ...

*Image* This type's been hauntin me ......... I know its sumthiing to do wid ∫ pl. help ...

Hi,iam facing a problem in determining when the work done by the friction is positive ,zero and when it is negative.Please help ...

When the voltage applied to an X-ray tube is increased from V1 = 40 kV to 200 kV the wavelength interval between the Kα line and the short-wave cut off frequency of the continuous X-ray spectrum increases by a factorξ = 2. ...

a metal sphere is suspended from a nylon thread.initially sphere is unharged.when a positively charged glass ro is brought close,sphere is drawn towards rod,if it touches rod,it suddenly flies away.explain. i think reason is ...

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draw the velocity- time graph of the particle moving with a constant retardation , and its initial velocity is zero ...

A vehicle of mass 'm' takes a turn of radius 'r' on a surface with friction coefficient 'μ'. The mass of vehicle is uniformly distributed so that it is at a height 'H' from the surface and at an equal distance 'a' from both ...

1.. A bicycle is riding down a rough inclined plane with a uniform velocity with the rider applying brakes on only the rear wheels. Giv the direction of friction on both the front and the back wheels. 2.. A man of mass 50kg s ...

*Image* a convergent beam is incident on two slabs placed in contact as shown .in fig where will the rays finally converge? sum 1 pl answer yaar ...

tank circuit ................................................................................ Let me see if u can calculate this.. What is the total impedence of a tank circuit . ...

Full Test 1 dbt : I didnt get how the circuit provided in solution given come about ?? *Image* ...

3 moles of a gaseous mixture havin volume V and temp T r compressed to 1/5th of itz initial volume . d chnge in d adiabatic compressibilty is d gas obeys d equation pv^(19/13) =constnt R=8.314 btw wats adiabatic compressibilt ...

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*Image* find equivalent resistance between A and B ...

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a satellite is put in an orbit just above d earth's atmsphere wid vel or (1.5)^1/2 tyms d vel for circular orbit at that height .initial vel imparted was horizontal .d max disctne of d satelite frm d surface of d earth wen it ...

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a large sheet carries uniform surface charge density sigma and a rod of length 2l has a linear charge density lambda on 1 half and -lambda on other half the rod is hinged at midpoint O and makes an angle theta with the normal ...