Recently Active Physics Questions

*Image* ...

*Image* ...

Q. A parallel plate capacitor is made of square plates of side length a. A parabolic cylindrical slab of dielectric const. K is placed between the plates . The eq. of the parabola is x2=ay & the vertex of parabola touches the ...

Dimension of 1/2 ε0E2 (ε0 is the permittivity of free space, E is electric filed) is? ...

a particle of mass 1 kg n charge 1/3 microc is projected towards a non conducting fixed spherical shell having the same charge uniformly distributed on its surface .radius of shell is 1 mm .distance b/w the line of motion n l ...

In cross product, does the mag. give the mag. of the perpendicular vector? Or of what? Isn't the perp. vector a unit vector? ...

a beam of light has a small wavelength spread δλ about a central wavelength λ.the beam travels in vaccum until it enters a glass plate at an angle θ relative to the normal to the plate .the index of refraction of glass is ...

Fing the minimum no. of identical wooden plates each of length L, mass M that have to be arranged as shown in the figure, so that the topmost plate is completely outside the table (ie, the leftmost point of the plate is outsi ...

statement 1: the thermal resistance of a multiple layer is equal to the sum of the thermal resistances of the individual laminas Please tell whether this statwement is correct or not ...

PRETTY EASY ONE...... BUT I HAV MY DOUBTS WID DA ANSWERS GIVEN........... *Image* PL. POST UR ANSWERS............ Answers as given in da papaer are : [DCB] ...

An engineer wants to locate a water pipe buried about half a meter below the surface of the field. Of the following , which sort of radioactive isotope(emitter) , he shall add to the water? a) γ emitter of T1/2 of several da ...

a simple pendulum havin a bob of mass m is suspended 4rm d ceilin of d car used in a stunt film shootin.the car moves up along an inclined cliff at a speed v and lands at sum distance.let R be the max height of d car 4rm d to ...

two balls were dropped from a very high cliff one after the other with some time lag between them The separation between them remains constant during the course of motion please tell whether this statement is correct or not? ...

How is zero error measured What is the least +ve value of zero error? How is it different from back lash error/ ...

If the zero error is given by +.0002 units and the final reading on a measuring device is 1 unit What is the correct length? ...

Edge of a cube is measured to be 1.2x10-2. The volume should be recorded as A) 1.7 x 10-6 m3 B) 1.73 x 10-6 m3 C) 1.70 x 10-6 m3 D) 1.728 x 10-6 m3 ...

In da fol. how many sig. fig. r ther 1) 0.070 2) 0.07*10^-1 3) 70*10^-3 4) 0.70*10^-2 ...

*Image* 1ST PART: WHAT IS THE CURRENT FLOW THORUGH ALL THE RESISTORS ? ASSUME THAT BATTERY HAS AN INTERNAL RESISTANCE OF R/3 *Image* ...

http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/micrometer.php iT TEACHES EVERYTHIN ABT THESE TWO INSTRUMENTS N MANY OTHERS AS WELL ...

The whole length of the screw of screw gauge is 4 cm this corresponds to 40 rotations of the screw Also , the circlular scale is marked at every 1 degree. Fidn the Pitch and the least count ...

least count of .0001 m the pitch is 1 mm fidn the no of divisions on the circular scale ...

A wire of length l=6±.06 cm and radius =0.5±0.005 cm and mass m=0.3±0.003 gm. maximum percentage error in density is ? ...

Pressure depends on distance as P=\frac{\alpha}{\beta}exp(\frac{-\alpha z}{k\theta}) where alpha, beta are constants, z is distance, k is boltzmann's constant and theta is temperature. The dimension of beta is? ...

A sound wave has a frequency of 2 KHz and wavelength of 35 cm. How long will it take to travel 1.4 km. (a) 600m/s (b) 700m/s (c) 800m/s (d) 900m/s in this question v have to find out time and the ans. r given in m/s and i got ...

the dipole moment of a system of charge +q distributed uniformly on an arc of radius r subtending an angle ∩/2at its centre where another charge -q is placed is (a)2√2qr/∩ (b)√2qr/∩ (c)qr/∩ (d)2qr/∩ soln also ne ...

The mean density of sea water is ∂ and bulk modulus is B.The change in density of sea water in going from surface of water to depth h is ...

the e field ina region is given by E=4axy√zi+2ax2√zj+ax2y/√zkwhere a is apositive constant eqn of equipotetial surface (a)z=c/(x3y2) (b)z=c/(xy2) (c)z=c/x4y2) (d)none here c is a constant ...

two particles x n y of equal mass an unequal positive charge are free to move and are initially far away .With y at rest x begins to move towards it with inital velocity u .after long time (A)x ll stop n y ll move with veloci ...

4 charges are placed each on a distance a frm origin. -2q at +x axis 3q at +y axis -2q at -x axis +q at -y axis dipole moment of configuration is ?? ...

A paricle moves in the xy plane accordingly with the velocity v=(a)i+(bt)j. At the instant t=a 3 /b the magnitude of the tangential, normal and the toatal acceleration are-___________, _________ and ________. ...