A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal.
Answer:
#efficiency
1.Efficiency=MA/VR *100%
2.It is expressed in percentage
3.Efficiency of machine can never be 100%
#velocity Ratio
1.VR=Ed/Ld
2.It don't have any unit
Answer:
Explanation:
- Given λ = wavelength of light reflected = 635 nm
- Using the equation ; 2 nb t = (m - (1/2)λ
Plugging the values in the equation ;
- 2 (1.50) t = (1 - (1/2) (635)
- t = 105.83 nm = the minimum thickness of the film
b) To calculate the wavelength of the most reflected visible light ;
- From the equation 2 nb t = mλ
Plugging the values into the equation
- λ' = wavelength = 317.5 nm
