Recently Active Physics Questions

need some help in physics. i am starting this thread constraint equations. plz post the method of writing constraint equations for three- four cases of laws of motion and plz also advice how to write the constraint equations ...

A plane divides space into two halves. One half is filled with a homogeneous conducting medium and physicists work in the other. They mark the outline of a square of side a on the plane and let a current I_0 in and out at two ...

The resistance of the shunt required to make the range n times for an ammeter of ressistance R is (a) nR (b) (n –1)R c) R/(n –1) (d) R/n ...

Two tourists who are at a distance of 40 km from their camp must reach it together in the shortest possible time. They have one bicycle which they decide to use in turn. One of them started walking at a speed v_1=5\ \mathrm{k ...

GUYS HOW WAS THE MATRIX MATCHING.................. ...

in a soccer practice session the football is kept at centre of field 40yards from the 10ft high goal post.a goal is attempted by kicking at a speed of 64 ft/s at 45 degree to horizontal.will ball reach goal post. ...

*Image* A rigid container is filled with 5g of a substance of molecular wt. 50. the subtance is heated ..... What are the latent heat of fusion and evaporation? what are the Average molar specific heat of the substance in sol ...

with wat minimum speed shud a motorbike be moving on the road to safely cross a 11.7ft wide ditch with approach roads at an angle of 15 degree with the horizontal.assume length of bike is 5 ft and it leaves the road as soon a ...

If a charged glass rod is held near one end of an insulated uncharged metal rod . the electrons are drawn to one end . Q1: Why does the flow of electrons cease?considering that there is an almost inexhaustible supply of elect ...

find gravitational field at O... *Image* ...

can someone please explain to me hot to do this question An open u tube has some mercury in it. 27.2 cm water is filled in one of it ends. How high does the mercury rise in the other tube?? density of mercury is 13.6 g/cc and ...

1)a cylindrical vessel of radius 0.05 m with liquid in its inside is rotating along axis with speed of revolution 2rev /s. the liquid rises at the sides ,the find diff. in height of liquid at center and along sides 2)a syring ...

a hollow cone of height h and density p floats in water of density p' with its vertex inside water.The height of cone that lies in water ...

Q1 air streams horz. past an airplane of wing area 120 m^2 and weighs 300kg.The speed over top surface is 60m/s and that under bottom is 45m/s.What is net force Q2 A ball whose density is p (p<po where po is density of wat ...

a travelling wave y=2mm sin[100pie t-kx] of wavelength lambda=2cm is reflected & transmitted at boundary at x=0 den amplitude of SHM at x=-1 is ...

if electric field is zero then is it necessary that potential is zero ...

when a white light is incident on a convex lens d colur of light which is less deviated from optical axis is ive got it as red but d ans is violet can nebody give d perfect xplanation for dat ...

2 lens 1 convex of focal length 50cm & anoder concave of focal len 75 cm r kept in contact den wat will b d nature of combination? ...

In 2006,there was a question in the JEE abt a u - v plot of a lens for finding focal length,the %age error or something similar was asked,how to find it?i have no clue! ...

10kg of ice @ -10°C N 10kg of H2O @ 10°C r mixxed ! then wats final temparture i hav forgotten this i only know tat msdelta0 shud be ezual to mL L ...>LATENT HEAT OF FREEZING OR BOILING SO WILL IT BE m * specific heat of ...

*Image* plz explain two moles of an ideal diatomic gas is heated in the process shown in figure what is the heat given to the gas?? what is the work done by the gas?? ...

*Image* calculate the heat absorbed by a system in going through the cyclic process shown in fig. ...

two spheres of same size are made of the same material but one is solid and the other is hollow. They r heated to same temp.Which will expand more, if not why? ...

*Image* a mass of 8g of oxygen at the pressure one atmosphere and at temp. 27°C is enclosed in a cylinder fitted with a frictionless piston.the following operations are performsd: I-the gas is heated at constant pressure to ...

Wat's da the formula connectin various degreees of freedom (viz. Trans Rot. and Vib.) with Cv ? [7] [7] ...

in d circuit shown in figure , switch S1&S2 open. find Va-Vb ...

i simply dont understand why now i am not able to solve this one............ i id it a few months back but now i cant get it........ plzzzzzzzz help me..its urgent............... a container of square base (2*2 m) height 4m i ...

*Image* find d emf[V] & internal resistance [r] of a single battery which is equilant to a parallel combination of 2 batteries of emf's v1 &v2 & internal resistances r1 &r2 resply with polarities as shown in fig ...

*Image* a smooth ring P of mass m can slide on a fixed horizontal rod....a string tied to the ring passes over a fixed pulley and carries a block of mass m/2 as shown....at an instant the string between the ring and the pulle ...

*Image* all the plates hv been given the indicated charges.find the charge n left side of plate with charge q a)-8q b)9q c)0 d)none andplease not just options give a propr solution ...