You want to design an experiment similar to the onedone by Jnsson that does not require magnifi cationof the interference pattern in order to be seen. Letthe two slits be separated by 2000 nm. Assume thatyou can discriminate visually between maxima thatare as little as 0.3 mm apart. You have at your disposala lab that allows the screen to be placed 80 cm awayfrom the slits. What energy electrons will you require?Do you think such low-energy electrons will representa problem? Explain.
CALULATING MOMENT OF INERTIA OF CIRCULAR DISK AND RING Shubham kc St. Cloud state university Introduction The main objective of this experiment was to find the relation of moment of inertia with angular velocity and torques. In this experiment, we took the disk and a ring of mass 4710±5 g and 4214±5 g respectively. We also measured the diameter of both disk and the ring. The inner diameter of the disk was 1.98±0.02 cm and for the ring is 22.5±0.02 cm and the outer diameter for the disk and ring was found to be 25±0.02 cm and 25.4±0.02 cm respectively. We also measured the diameter of the spinner which was found to be 4.89±0.02 cm. 1 2 Id= 2 MR (i) where, Id=moment of inertia of disk, M= Mass of the disk, R= Radius o