The speed of light decreases. The speed of light in a medium is inversely proportional to the refractive index of the medium. ##v=frac{v_0}{n}## where ##v## is […]
##k~=0051## ##if object stops velocity of object is zero.## ##v_l: last velocity of object## ##v_i: initial velocity of object## ##a: acceleration of object## ##x: displacement of […]
##70588xx10^(14)Hz## Using the equation for the speed of a light wave and knowing its speed in air we get : ##c=flambda## ##thereforef=c/lambda=(3xx10^8m//s)/(425xx10^(-9)m)=70588xx10^(14)Hz##
Yes; the scalar product of two vectors will be zero if the two vectors are perpendicular to each other. Here is a simple example: If ##stackrel(rarr)(A) […]