(b) Draw the magnetic field lines for a current carrying solenoid when a rod made of (i) copper, (ii ) aluminium and (iii) iron are inserted within the solenoid as shown. However, what matters most in terms of measuring light intensity is the number of lumens falling on a surface, which is expressed as lux. Light intensity ( Intensity of Light ) refers to the strength or amount of light produced by a specific lamp source. The intensity or brightness of light as a function of the distance from the light source follows an inverse square relationship. Obtain the expression for the orbital magnetic moment of the electron in terms of fundamental constants. (a) An electron in the ground state of a Hydrogen atom is revolving in a circular orbit of radius R.
Derive the expression for the force acting per unit length on the wire AB and write the condition for which wire AB is in equilibrium. In the Youngs double-slit experiment, the intensity of light at a point on the screen where the path difference is is K,( being the wave length of light used). It is typically measured in units of watts per.
#Intensity of light free#
(b) A horizontal wire AB of length ‘l’ and mass ‘m’ carries a steady current I1, free to move in the vertical plane is in equilibrium at the height of ‘h’ over another parallel long wire CD carrying a steady current I2, which is fixed in a horizontal plane as shown. Photographic measurements of relative light intensity as a function of height and time have been conducted for seven return strokes in two lightning flashes. The light from the original square has now 'spread out' over an area of 4 ( 2 2) squares. The intensity of light refers to the amount of energy that is carried by a beam of light per unit area. How would the trajectory of the particle be affected if the electric field is switched off? Write the condition under which the particle will continue moving along x-axis. (a) A particle of charge q is moving with velocity v in the presence of crossed Electric field E and Magnetic field B as shown.
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