A beam of electrons is accelerated across a potential of 14.60 kV before passing through two slits. The electrons form an interference pattern on a screen 4.40 m in front of the slits. The first-order maximum is 8.80 mm from the central maximum. What is the distance between the slits

Explanation:

h = Planck constant =

= Wavelength

m = Mass of electron =

= Potential difference = 14.6 kV

e = Charge of electron =

d = Distance between slits

We have the relation

Wavelength is given by

The distance between the slits is .

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia