1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vazorg [7]
3 years ago
9

Calculate the minimum thickness (in nm) of an oil slick on water that appears blue when illuminated by white light perpendicular

to its surface. Take the blue wavelength to be 480 nm and the index of refraction of oil to be 1.43.
Physics
1 answer:
mr_godi [17]3 years ago
4 0

Answer:

The minimum thickness = 83.92 nm

Explanation:

The relation between the wavelength in a particular medium and refractive index \lambda_n = \frac{ \lambda }{n}

where ;

\lambda = wavelength of the light in vacuum

n = refractive index of medium with respect to vacuum

For one phase change :

2t = \frac{\lambda_n}{2}\\\\where \ \lambda_n = \frac{\lambda}{n}\\\\Then \ \\\\2t = \frac{\lambda}{2n}\\\\t = \frac{\lambda_n}{4n}

Replacing 1.43 for n and 480 nm for λ; we have:

t = \frac{480}{4(1.43)}

t = 83.92 nm

Thus; the minimum thickness = 83.92 nm

You might be interested in
Radar use reflected microwaves to detect objects and measure their... what?
Sloan [31]
Height and depth..... for sure....

7 0
3 years ago
A motorist travels at 270 km in p hours at a certain average speed. an expression for the distance that this motorist travelled
wel
Average speed = total distance / time ⇒ total distance = average speed *  time

Average speed = 270 km / p hours
distance = d
hours = x

d = 270/p * x
5 0
3 years ago
If mass increases ,what must happen to the force in order to achieve the same change in motion?
igor_vitrenko [27]

Answer:

increase

Explanation:

8 0
2 years ago
Kenny klutz drops his physics book off his aunt's high-rise balcony.it hits the ground below 1.5 s later?
tatuchka [14]

Gravity causes a falling object to fall 9.8 m/s faster every second it falls.

Kenny's book started out with no speed when it was dropped. 
1.5 sec later, it was falling at (9.8 x 1.5) = 14.7 m/s .

During the fall, its average speed was  1/2(0 + 14.7) = 7.35 m/s .

Distance it covered = (average speed) x (time) =

                                             (7.35 m/s) x (1.5 sec) = 11.025 m

8 0
3 years ago
An advertisement claims that a certain 1200kg can accelerate from rest to a speed of 25 m/s in a time of 8s. What average power
expeople1 [14]

Answer: 3MW

Explanation:

W = 1/2 mv^2

W = 0.5 x 1200 x 25^2 = 375 kW

T = 8s

P= 335 x 10^3 x 8 = 3,000 kW = 3MW

3 0
3 years ago
Other questions:
  • A 2 ft x 2 ft x 2 ft box weighs 100 pounds, and the weight is evenly distributed. What is the magnitude of the minimum horizonta
    9·2 answers
  • How is the thermal energy from the air surrounding the radiator transferred to the air in the rest of the room?
    7·1 answer
  • Density is calculated by dividing the mass of an object by its volume. Please select the best answer from the choices provided T
    13·1 answer
  • How does the rotation of a galaxy result in spectral line broadening?
    15·1 answer
  • The term relative intensity is used to denote the amount of energy expended per minute.
    5·1 answer
  • Why are temperatures of the currents generally colder at the poles than the equator?
    10·1 answer
  • HELP ASAP 100 POINTS NEED ANSWERED ASAP
    14·2 answers
  • The value of acceleration due to gravity is less at the top of Mount Everest then that in the terai reason, why?​
    9·1 answer
  • A bullet is shot vertically upward with an initial velocity of 128 ft/s. The bullet's height after t seconds is y(t) = 128t - 16
    15·1 answer
  • Two particles with oppositely signed charges nC are placed at two of the vertices of an equilateral triangle with side length 3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!