Recently Active Physics Questions

*Image* we need to find the equivalent resistance b/w A and B. ...

what is 100 + 110 ? cant we say its 210 ? 110 also has 2 s.f right ? the rule is that ans should be having same s.f as min. s.f num .. this is the result given by wiki --- http://en.wikipedia.org/wiki/Significance_arithmetic ...

You attach a weight to a vertical fixed spring and release it from rest. When the weight reaches its lowest point, its velocity is zero. So a=dv/dt = 0 But if you apply equation of S.H.M. i.e. a = -Ñ¡2x, x (displacement from ...

this is an easy but nice question... Suppose a car starts from a point A and reaches a point B after time t .The car has definite velocity (which may be variable or constant but it is defined) all through the journey. Let V b ...

*Image* *Image* A cylindrical vessel of area of cross section A and filled with liquid to a height of h1 has a capillary tube of length l and radius r protruding horizontally at its bottom.If the viscosity of liquid is \eta a ...

1.217. Find the proper potential energy of gravitational interaction of matter forming a 1)thin uniform spherical layer of mass m and radius R 2)uniform sphere of mass m and radius R (i have done the 2nd part,need help in the ...

A ball is dropped on the ground from height of 1m.The coefficient of restitiution is 0.6.The height to which the ball wil rebound. a) 0.6 m b) 0.4 m c) 0.36m d) 0.16 m ...

1- electric fld between plates of parallel capacitor is 2.and charg on two plates are 10 and 3?find force on 1 of plate??? 2-a dipole is placed parallel to x-axis and having coordinate (x,y)...and electric field is non unifor ...

1- electric fld between plates of parallel capacitor is 2.and charg on two plates are 10 and 3?find force on 1 of plate??? 2-a dipole is placed parallel to x-axis and having coordinate (x,y)...and electric field is non unifor ...

anant sir , u take very high tuition fees. ....... and whatever you teach i canot understand anything. ...

Hello, I am very curious to know why 'torque' is only the cross product of force and perpendicular distance.I just want to know the mathematical derivation for this equation.In physics,nothing can be just defined;there has to ...

is edudigm in benachity ...

How to find the wedge constraint using the method of "net Work done by internal forces (in a system) is zero. " http://targetiit.com/iit-jee-forum/posts/constraint-equation-471.html For example, in the below figure..suppose t ...

*Image* ...

A point charge q = 1μC is brought from infinity (slowly so that heat developed in the shell is negligible) and is placed at the centre of a conducting neutral spherical shell of inner radius a = 1m and outer radius b = 2m, t ...

Suppose you drill a narrow tube (with cross sectional area A) from the surface of the earth down to the center. Then line the cylindrical wall of the tube with a frictionless coating. Then fill the tube back up with the dirt ...

Can somebody provide the link for proof of velocity of sound travelling in a medium.( I believe its some experiment.) ...

1.To construct a barometer a tube of length 1m is completely filled with mercury and is inverted in a mercury cup.The barometer reading on a particular day is 76 cm.suppose a i m tube is filled with mercury up to 76 cm and th ...

A candle should not be blown off because even the gas that we exhale has a lot of oxygen.. But we all know that presence of oxygen should not lead to dying of the flame Explain this very commonly seen phenomenon? ...

*Image* ans: a) uoI/4r ( 2r2 - a2/4r2 - a2 ) to the left. b) uoI/(pi)r ( 2r2 + a2/4r2 + a2 ) towards the top of the page. ...

Two long parallel wires are at a distance 2d apart. They carry equal steady currents flowing out of the plane of the paper as shown. The variation of the B along the line XX1 is given by- 1st fig or 2nd fig?? Explain along wi ...

The tyre is filled with fluid.. pressure at all pts inside the fluid being same, equal force aplied from all sides on the rim of the wheel.. NET FORCE ON THE TYRE RIM IS 0..THEN HOW IS THE WEIGHT OF THE RIM BALANCED ???? SOME ...

*Image* The rays are parallel to each other. What angle will the emerging rays will make with each other? please give me the steps. ...

*Image* ...

Tommorow its GMO....... Is anyone prepared? ...

IN THE ARRANGEMENT BELOW ,THE BODIES HAVE MASSES m0, m1, m2 . Friction absent Masses of pulley, and threads are negligible.Find acceleration of the body m1. *Image* plsss. its a simple one ...

1. Prove that a ray of light passing through the principal focus after reflection will go parallel to the principal axis..... ...

a double seperation of 0.01mm is illuminated by white light . a coloured interference pattern is formed on the screen 100cm away. if a pin hole is placed on this screen at a distance of 2mm from the central fringe , the wavel ...

*Image* ...

Please explain me the concept in this question. Figure shows a small block of mass m kept on the left end of a larger block of mass M and length l. The system can slide on horizontal road. The system is started towards right ...