Plane microwaves are incident on a thin metal sheet that has a long, narrow slit of width 4.8 cm in it. the microwave radiation strikes the sheet at normal incidence. the first diffraction minimum is observed at θ = 42°. what is the wavelength of the microwaves?

Explanation:

given,                                                                            

width of narrow slit = 4.8 cm                                

minimum angle of diffraction = θ = 42°                

wavelength of the microwave = ?                            

condition for the diffraction for single slit diffraction

for the first minima m = 1                          

wavelength of microwave radiation is equal to

the wavelength of microwaves is equal to

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

the total distance traveled by the car is

30km + 49km = 79 km .