The image below is a sketch of two-slit diffraction of light. narrow slits at a and b act as wave sources, and waves interfering in various phases are shown at c, d, e, and f. a sketch of two-slit diffraction of light. narrow slits at a and b act as sources on the left, and waves interfering in various phases are shown at c, d, e, and f on the right. the equation for the double-slit experiment for small angles is equation showing lambda divided by d equals x divided by l in the image, which description below represents the l of the equation? the distance between a and b the distance between a and d the distance between midpoints d, e, and f the light bands between d and e and f

What is hidden during a lunar eclipse? isn't the moon hidden?

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

What are atoms of the same element with varying number of neutrons