Recent content by easwar2641993

In order to understand about De-Broglie's explanation on Bohr's second postulate,concept of standing waves should be understood. But condition of λ for a given value of length(string) L is given by L=nλ/s where n =1,2,3 etc. But for a string whose ends are connected together and its shape is...

We all know that whenever an object is subjected to move against a conservative force field by an external agent,work should be done to do that.Let that work be W(applied). This is stored as Potential energy of the system. If F is conservative force acting on a body and if we move that body...

I have several questions about capacitor's concepts. Q1)What does battery really do in charging a capacitor? Q2)Uncharged capacitor doesn't mean the plates don't have any charges? Q3)During charging,the developing electric field between the plates does have any effect in charging? Q4)When...

A bird flies by pushing downwards the air below its wings with a force. According to Newton's third law, the air pushes the wings upwards. As a result, the bird is lifted. Also consider the case of a rocket. The fuel it ejects exerts an upward force and as a result, the rocket moves upwards...

I came across a rather confusing topic about Work Energy Theorem and Potential Energy applied in lifting a particle.I will be glad if anyone clears it for me. Consider a particle at a height =0.Potential Energy is considered as zero at height=0.Now it is lifted to a position where height is h...

Why Group 15 elements(except Nitrogen) have empty d orbitals while bonding? Aufbau Principle states that electrons are added in orbitals only in the increasing order of energy of sub-shells.Also Bohr Bury rule adds to the above principle that increasing order of energy depends on the value of...

Actually I have no idea how to raise terms to some power here.But I will repeat that ζ=(∏*n*r raised to 4*∅)/2l where ζ is the torque acting on the body,∏ is pie or 3.14,n is the Rigidity modulus of the material of the cylinder,r is the radius of it,∅ is the angle of twist,and l is the length...

No .I used radius. 2.5Nm = (∏*n*(4*10 raised to -3)raised to 4*15*10 raised to -2)/2 i.e n = (2.5*2)/(∏*(4*10 raised to -3)raised to 4*15*10 raised to -2) =>n=4.14*10 raised to 10 N/m square. This is the answer for 1st question. For the second. Let the radius of P be r.Hence from the...

A Circular bar 1m long and of 8mm diameter is rigidly clamped at one end in a vertical position. A couple of magnitude of 2.5Nm is applied at the other end. As a result, a mirror fixed at this end deflects a spot of light by 15cm on a scale 1m away. Calculate the rigidity modulus of the bar...

A thin wire of length L and uniformly density ρ is bent into a circular loop with center at O.The moment of inertia of it about a tangential axis lying in the plane of loop is. Ans : Mass M is not given,but ρ is given. So M=ρL3->(1) (L3 means L cube,no idea how to post it in that manner!). For...

We all know that M.I of a Uniform rigid rod about an axis perpendicular to it's length and passing through it's center is MLsquare/12.Where M is mass and L is length of the rod. If it is broken to half such that M becomes M/2 and L becomes L/2,we can't apply ML square /12 formula to it.We have...