Describe the magnetic moment of a bar magnet, Describe the magnetic moment ...

Describe the magnetic moment of a bar magnet. What is its direction? Can you find two magnetic field lines intersecting? Why?

Calculate the distance between the first dark and the next , Diffraction pa...

Diffraction pattern of a single slit of width 0.5 cm is formed by lens of focal length 40 cm. Calculate the distance between the first dark and the next bright fringe from the axis

Scalar and vector, example of problems of vector and scalar with solution

example of problems of vector and scalar with solution

Forces and nature,

Relativity, Length contraction

Length contraction

Calculate the shortest wavelength limit of lyman series, Q. The Rydberg's c...

Q. The Rydberg's constant for hydrogen is 1.097 X 10 7 ms -1 . Calculate the shortest wavelength limit of Lyman series. Data : R = 1.097 × 10 7 m -1 For small wavelen

gravity, what is newton law of gravitation

what is newton law of gravitation?

Nuclear physics: rutherford's alpha-scattering , Rutherford's alpha-scatter...

Rutherford's alpha-scattering experiment recognized that the mass of atom is concentrated with small positively charged region at the centre which is known as 'nucleus'. Nuclei

Valve & digital electronics: thermionic emission, (i) The procedure of ejec...

(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current

Ray optics, sign conventions for lenses

sign conventions for lenses