A metal (M) has a work function of 8.76×10^{−19} J8.76×10 −19 J. When electromagnetic radiation of a particular wavelength is shone upon the metal surface, photoelectrons having a maximum speed of 2.35×10^{6} m/s2.35×10 6 m/s are ejected. What is the wavelength (in nm) of the electromagnetic radiation that struck the metal surface? To what region of the electromagnetic spectrum (UV, visible, IR, etc.) does this correspond?

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.