Recently Active Physics Questions

Amazing Video Lectures from the BEST Teacher in Physics ss:- http://ocw.mit.edu/NR/rdonlyres/Physics/8-01Physics-IFall1999/53A6E324-56BD-4DC0-93C3-A544F1B8506B/0/801SwingA.jpg WALTER H. G. LEWIN, Professor of Physics,MIT - On ...

can any1 tell me da logic bhind findin da temp of any jn?(better if gn wid an example) ...

silver and copper voltmeter are connected in parallel with a battery of e.m.f. 12V in 30 minute 1 gm of silver and 1.8 gm of copper are liberated the enegy supplied by the battery is? ...

a current is passed through a resistor. let K1 and K2 represent the average kinetic energy of conduction electrons and metal ions respectively. a)K1<K2, b) K1=K2 ,c) K1>K2 ,d) any of these three may occur ...

the resistivity of copper is 0.015 micro ohm-m at 300 K addition of each atomic % of Ni and Ag causes an increase in resistivity by 0.012 micro ohm-m and 0.16 micro ohm-m respectively calculate resistivity of Cu-Ni-Ag alloy a ...

another one.......ncert quest *Image* ...

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What is the phase difference, at a given instant of time, between two particles 25 m apart, when the wave y (x, t) = 0.03 sin (2t - 0.01x) travels in a medium ? ...

Two organ pipes, each closed at one end, give 5 beats per second when emitting their fundamental notes. If their lengths are in the ratio of 50 : 51, their fundamental frequencies (in Hz) are? ...

*Image* Paragraph for Questions numbers 14 to 16 : Mass of a string varies with its length as m = 0.1L where m is in kg and L is in cm. A block of mass 5kg is hanging to its lower end. A force F = 12 N acts on the block in ve ...

*Image* two particles A and B of the same mass are joined by a light string and placed on a horizontal surface. An external horizontal force P acts on A. the tension in the string is T. the force of friction acting on A and B ...

Consider a container which contains just one molecule of a gas. What will happen if you: (1) double the volume keeping temperature constant (2) double the temperature keeping pressure constant? ...

In YDSE both slits produce equal intensities on the screen.A 100% transparent film is placed in front of one of the slits.Now the intensity on the center of screen becomes 75% of previous intensity.The wavelength of light is ...

*Image* what will be the extension of the spring? ...

*Image* Paragraph for Questions numbers 14 to 16 : Mass of a string varies with its length as m = 0.1L where m is in kg and L is in cm. A block of mass 5kg is hanging to its lower end. A force F = 12 N acts on the block in ve ...

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Central fringe of interference pattern produced by light of wavelength 6000A is found to shift to position of 4th dark fringe after glass sheet of refractive index=1.5 is introduced.Find thickness of glass sheet. ...

In YDSE if slab whose refractive index can be varied is placed in front of one of the slits.Then plot the variation of resultant intensity at mid point on screen with refractive index(where refractive index >1) ...

The ratio of intensity at the center of a bright fringe to the intensity at the point one quarter of fringe width from center is? ...

*Image* Assertion:Powernet=0.66D Reason:Pnet=P1+P2 ...

Can transverse (material)wave travel in air.. why/why not ...

In young's double slit exp.,60 fringes are observed in central view zone with wavelength of light 4000 A.The no. of fringes that will be observed in same view zone with 6000A light is? ...

A charge particle X moves directly towards another charged particle Y. for the ‘X and Y’ system, the total moment is ‘p’ and the total energy is ‘E’. a) p and E are conserved if both X and Y are free to move. b) ( ...

In a 1-dimensional collision between two particles, their relative velocity is v1 , before the collision and v2 after the collision. a) v1=v2 if the collision is elastic. b) v1= -v2 if the coll is elastic. c) |v1| = |v2| in a ...

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*Image* my confusion is one thing: why should the horizontal forces cancel each other?? even if the man has a horizontal acc, it has no space to move!! do answer.. otherwise no other prob with the question... (sorry for the s ...

rotational *Image* find omega//... ω there is ground wid frictions..no slipping......the block keeps horizontal always..... ...

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a block of weight 9.8 N is placed on a table. the table surface exerts an upward force of 10N on the block. assume g=9.8 m/s2. a) block exerts a force of 10N on the table. b) block exerts a force of 19.8N on the table. c) blo ...

do them if u feel to do .. syllabus blabla bla math lao yaha 1]Two beads of mass m are positioned at the top of a frictionless hoop of mass M andradius R, which stands vertically on the ground. The beads are given tiny kicks, ...