Recently Active Physics Questions

A car is travelling at 5 m/s.another car in the parking lot just 11 m ahead of the 1st car starts at an acc. of 1m/s2.in what time will both meet? a)4 s b)6 s c)4 and 6 s d)Never ...

there are 2radioactive substances who emit 2 and beta emissions there disintegration constant are in the ration 2 is to 3 fto hv equal probabilities of getting 2 and b particles the ration of the number of nuclei f a to the n ...

A typhoon originates in the Indian ocean.satellite imaging shows that the distance travelled by it are 105 and 95 in the 1st 2 hours after it originated.It is dangerous at speeds above 50 kmph.find the time taken for it to su ...

true or false.....with explaination 1) work done by kinetic friction on a body is never 0 2)work done by Kinetic friction on a system is always negative plzzz give expalination also ...

yesterday i was seeing the sove papers of nsep and i saw that the equivalent resistance m was asked in one question and it was writtent that equivalent reisstance is when calculated the internal resistance is not added.... is ...

in dc pandey it is writen there is no difference between waves represented by the equations y=Asin(wt-kx) and y=Asin(kx-wt) thats easy now we know the difference is that one is moving downwards and other is moving upwards now ...

i hv two or three doubts in error analysis first when we are calculating zero errors for vernier calipers we find that the positive and negaticve zero errors are different mainly i cant understand this that wjen nothing is pu ...

true or false.....with explaination work done by kinetic friction on a body is never 0(in ground frame) ...

*Image* pls solve fast the logic whci i was getting was that the magnetic field will be the diffrence between the rod between pnt A and the perpendicular meeting pnt and the b to the perpendicular meeting pn ...

A positive point charge Q is kept (as shown in the figure) inside a neutral conducting shell whose centre is at C. An external uniform electric field E is applied. Then which of the followings is/are incorrect: *Image* force ...

find the equivalent time constant of the circuit obviusly there is one long method the kirchoffs law method but is there a simpler method and one more question is that find the current in the circuit after steady state this p ...

hey dudes can anyone help me with a shms in different direction like in r=(1+2coswt)i+(3sin^{}2 wt)+(3t)k the qiestion asked was what is the shm and what is the time period and so on........... x=Asin^{}2 wt+Bcos^{}2 wt +Csin ...

*Image* a rod of length 2m moves in horizontal x-y plane. at any instant end 'a' of the rod is at the origin and has velocity V1 (see fig.). the other end B at the same instant is moving with velocity V2 (see fig.). t ...

*Image* smaller ball mass = m ; larger mass = 3m ; spring constant =k; smaller mass pressed down by a distance δ. Then comes my doubt : which one is right : 1) N (normal reacn.) = mg + 3mg + kδ 2) N = mg + 3mg - kδ My expl ...

*Image* A rod of length 2m moves in horizontal x-y plane .At any instant end a of the rod is at origin and has velocity vA=2i+vyj.the other end B aty the same instant is moving with velo=vB=2i+6j.the rod makes an angle of 30Â ...

Two concentric shells are surrounded by a conducting surface as shown in figure. Now the middle shell and outer conducting surface are connected by a conducting wire. What will be charge on surface surrounding the two shells ...

Two particles execute S.H.M. of same amplitude and frequency along the same straight line from same mean position. They cross one another without collision, when going in opposite directions, each time their displacement is 3 ...

*Image* ...

*Image* PLZ IGNORE THE DATA WRITTEN WITH PEN AND THE LINE SHOWING '50' ON ONE CAPACITOR AND ALSO THE OTHER LINE ON THE OTHER CAPACITOR. SOLVE THE QUESTION WITH ONLY THE PRINTED INFO C1=1 F C2= 2F L=5H initially C1 is charged ...

The mass per nucleon in H atom is same as in an oxygen atom ...

How to find constraint equation when pulleys are connected over a horizontal plane?Please give an example. ...

*Image* A block B of mass M is suspended from a chord of length l attached to a cart A of mass M as shown in the fig.the horizontal surface on which the cart moves is smooth .initially both the cart and the bock are at rest i ...

i was giving a test in target iit and there was a question that the graph of v with respect to n of an electron and according to me it should be a rectangular hyperbola in the downwards drireciton shouldn it ...

If the is in one medium and the observer in other medium both media being at rest, the time taken to travel from one to the other is fixed for all points of the wavefronts. This means that two wavefronts separated by one time ...

i dont know but i hv this doubt nagging me....... we hv studed that according to gauss law magnetic flux through a closed surface is 0 as no single charge ever exists..... now in electromagentic inudctuion the emf induced is ...

does the coefficient of thermal expansion of metals depend on the electronic configuration of the metals? ...

JUST WANT ANSWERS FOR VERIFICATION *Image* For the system shown in figure find: (a) the linear acceleration of hoop (b) angular acceleration of hoop of mass M (c) tension in the rope masses are M and m and radius of hoop is r ...

i dont know but i hv this doubt nagging me....... we hv studed that according to gauss law magnetic flux through a closed surface is 0 as no single charge ever exists..... now in electromagentic inudctuion the emf induced is ...

as we hv learnt that field outside a solenoid is 0 but here *Image* but here in ncert it is calculating the elctric field at a pnt p successfully so i htink i hv made a mistake the field along the axis of a solenoid is not 0 ...

*Image* the two extreme plates are grounded .........A and B given charge 2Q and 3Q .......find potential difference between A and B .... ...