Late one night on a highway, a car speeds by you and fadesinto the distance. under these conditions the pupils of your eyes(average refractive index = 1.36) have diameters of about6.0 mm. the taillights of this car areseparated by a distance of 1.4 m andemit red light (wavelength = 660 nm in vacuum). how far away fromyou is this car when its taillights appear to merge into a singlespot of light because of the effects of diffraction?

10432.19076 m

Explanation:

= Wavelength = 660 nm

d = Diameter of pupils = 6 mm

s = Distance between lights = 1.4 m

L = Distance from observer

From Rayleigh's criteria we have

As is small

So, the equation becomes

The car is 10432.19076 m from me

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

the bal will not change its velocity.