Recently Active Physics Questions

what do u understand by f(t-x/v)????(in case of waves) write anything ,what u can extract from this. ...

*Image* a disc of mass M and radius R can rotate freely about a horizontal shaft at S distant r from the centre of mass of the disc 0.the disc is released from postion shown figure,its angular acceleration will be ...

A square loop of side a with a capacitor C is located beween 2 current carrying long wires.The current I in wire varies as I=Iosin ωt *Image* Calculate max current in loop I am getting \frac{\mu _{o}}{\pi }CI_{o}a\omega ^{2} ...

DO COMMENT IF U R AMAZED!!!!!!!!!![4][4][4] http://www.youtube.com/watch?v=DfPeprQ7oGc ...

*Image* a bubble having surface tension T and radius R is formed on a ring of radius b (b <<R) . air is blown inside the tube with velocity 'v' as shown.the air molecule collides perpendicularly with the wall of the bub ...

Many Blocks are placed one over the other such that some part of the upper slab hangs out of the lower one. How will you Determine the stability?? eg: assume that there are 4 blocks. each of length 1 m. The 1st block is on gr ...

*Image* WHICH 1 REACHES THE GROWND FASTER X OR Y[SORRY THIS IS VERY STUPID] ...

not to test phy but to test if u remember the results.. Q. From a point h above the uniformly charged disc (charge density σ)a charge +q is thrown with some velocity v such that it reach B with same velocity. radius of disc ...

*Image* I know this un is quite easy! but guys can u pl. que6 and wat wud b ur ans for que5 if the wave was moving towards "+VE X-Axis??? Y??? [7] ...

*Image* PL. HELP IN 36 & 37........... 37) I got dat x = 10/Î but not getting time to travel that distance x ...

calculate the min wavelength of X-rays emitted by an x-ray tube operating at a tube potential of 40KV?? ...

A square plate of mass M and edge length L is shown in figure. Find the moment of inertia of the plate about the axis in the plane of the plate passing through one of the vertex making an angle of 15° from the horizontal. *I ...

its like i gave for optics 1]if an x ray tube operates at voltage of 10000 volts, find the ratio of the de broglie wavelength of the incident electrons to the shortest wavelength of X rays produced. the specific charge of ele ...

AN OBJECT IS 20cm AWAY FROM A CONCAVE MIRROR WITH FOCAL LENGTH 15cm.IF THE OBJECT MOVES WITH THE SPEED OF 5m/s ALONG THE AXIS THEN WHAT IS THE SPEED OF THE IMAGE ? please give the final answer along with steps ...

*Image* KEY WORD : PRESSURE NODE ( YEH KYA HOTA HE???) ...

i want to finish a few chapters of class 12 before the school begins. after that i will try 2 strengthen my concepts of class 11..... thank you.. ...

*Image* the figure shows a circular coil of N turns and radius a connected to a battery E through a rheostat . the rheostat has length L and resistance R .the resistance of the coil is r . a circular loop of radius a' and res ...

What will happen to rooms temperature when door of the fridge is left open?? Plzz explain with clearly ...

Some of the questions are quite "silly" and easy , but i just wanted to create some questions!! 1) The maximum and minimum radius of curvature of wave fronts of a concave and convex mirror is/are 1. 0 2. R 3. R/2 4. Infinity ...

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WHY THE MAGNETIC FIELD LINES IN A TOROID R CONFINED TO WITHIN IT's CORE...BUT NOT SO IN CASE OF SOLENOID.... ...

made up this ques.... if a uniform chain is hanging from two points, wat will be its shape? (parabola/hyperbola/part of ellipse etc...) I'm almost dead sure that it will be a parabola...but how will we prove it??? part 2... w ...

Is my graph correct for activity vs time graph, T-half life *Image* They asked to plot activity, so i multiplied Λ - lamda on y axis, is it correct or only the amount present is correct?? ...

KIRTI KUMAR wish a big question? Acc. to einstein's equation m=m0/sqrt(1-(v^2/c^2)) for a photon v=c; therefore,m=infinity; hence its momentum is huge... but it does not have any impact why?? akshay answered:Akshay no m is no ...

Two identical but independent monochromatic sources of light cannot be coherent.Why? ...

find capacitance b/w point A and B area-A separation b/w plates d *Image* ...

A pt charge q is placed inside a conducting spherical shell of inner radius 2R and outer radius 3R at a distance R from the centre of the shell.Find the potential at the centre ...

These are elementary doubts.....please do help..... 1.> Why is heavy water used as a moderator in a nuclear reactor? I mean i kno it is used and i also kno y....but y heavy water..plzz explain.. 2. What is the name given t ...

ASSERTION REASON :- 1. STATEMENT 1- When a soda water bottle falls freely from a height of h , the gas bubble rises in water from the bottom STATEMENT 2 - Air is lighter than liquid 2. S1- When an object collides with another ...

Help Jack!! Some Jack's physics and see how it helps him escape the flying Duchman :P Q.1 Jack is on the top of a mast(10 m high see level) of his Black Pearl and sees the flying Duchman (point sized :P) at a distance of ...