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
Hatshy [7]
3 years ago
9

4. Three polarizing disks whose planes are parallel and centered on common axis. The directions of their transmission axes relat

ive to the vertical are respectively: θ1 = 40o clockwise, θ2 = 24o counter-clockwise, and θ3 = 26o clockwise. A beam of light polarized along the vertical is incident onto the first polarizer with an intensity of I0 = 28.0 W/m². Calculate the transmitted intensity through all three polarizers.
Physics
1 answer:
Slav-nsk [51]3 years ago
8 0

Answer

given,

θ₁ = 40⁰    clockwise,

θ₂ = 24⁰    counter-clockwise

θ₃ = 26⁰     clockwise

I₀ = 28.0 W/m²      

the transmitted intensity through all three polarizers.

I₁ = I₀ (cos θ₁ )²

I₁ = 28 x (cos 40⁰ )²

I₁ = 16.43 W/m²

Intensity through second polarizer,

I₂ = I₀ (cos (θ₂ - θ₁)  )²

I₂ = 28 x (cos (-24-40)  )²

I₂ = 28 x (cos (-64)  )²

I₂= 5.38 W/m²

Intensity through third polarizer,

 I₃ = I₀ (cos (θ₃ - θ₂)  )²

I₃ = 28 x (cos (26-(-24))  )²

I₃ = 28 x (cos (50)  )²

I₃= 11.57 W/m²

You might be interested in
Water changes shape to fill the shape of its container. What is the best explanation for this?
jeka57 [31]
D. The molecules in water are constantly moving.

They are able to do this because they move around to take whatever shape of the container.
6 0
3 years ago
Read 2 more answers
Describing motion using words instead of numbers is called
GrogVix [38]
The answer is <span>Qualitative</span>
8 0
3 years ago
Read 2 more answers
A person applies a rightward force of 80 N to a cart of physics textbooks what is the reaction force
Goryan [66]

Just as Prof. Newton said: "For every action, there is an EQUAL, OPPOSITE reaction.". (See his motion law #3.)

If our person APPLIED a force of 80N pointing to the right, then that's the 'action'.  It must follow, as the night follows the day, that the strength of the equal REaction is also 80N, and it points to the left because it's opposite to the action.    

6 0
3 years ago
An accelerating voltage of 2.47 x 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling horiz
Dmitry [639]

Answer:

6.3445×10⁻¹⁶ m

Explanation:

E = Accelerating voltage = 2.47×10³ V

m = Mass of electron

Distance electron travels = 33.5 cm = 0.335 cm

E=\frac{mv^2}{2}\\\Rightarrow v=\sqrt{\frac{2E}{m}}\\\Rightarrow v=\sqrt{\frac{2\times 2470\times 1.6\times 10^{-19}}{9.11\times 10^{-31}}}\\\Rightarrow v=29455356.08671\ m/s

Deflection by Earth's Gravity

\Delta =\frac {gt^2}{2}

Now, Time = Distance/Velocity

\Delta =\frac {g\frac{s^2}{v^2}}{2}\\\Rightarrow \Delta =\frac{9.81\frac{0.335^2}{29455356.08671^2}}{2}\\\Rightarrow \Delta =6.3445\times 10^{-16}\ m

∴ Magnitude of the deflection on the screen caused by the Earth's gravitational field is 6.3445×10⁻¹⁶ m

3 0
3 years ago
Name at least 4 things our atmosphere does for us
Firdavs [7]
Hey there!

1.) Without the atmosphere, average temperature on Earth would be freezing! Below zero to be exact!

2.) The atmosphere protects us and animals from dangerous radiation from the Sun. Ultraviolet radiation is basically invisible rays of energy created by the sun.

3.) Also, the atmosphere provides oxygen for humans and animals to breathe and C02 (Carbon dioxide) for plants.

4.) And lastly, the atmosphere protects us from objects coming towards the earth.

Hope this helps!
8 0
3 years ago
Other questions:
  • If there is an object in top of another object, why does the upper object exert a downward normal force?​
    12·1 answer
  • If the minus sign were not in Faraday's law it would lead to a violation of the law of conservation of energy. True or False?
    10·1 answer
  • What is the mass of an object if the force of 17 n causes it to accelerate at 1.5 m/s/s?
    9·1 answer
  • A 68.5 kg astronaut is doing a repair in space on the orbiting space station. He throws a 2.25 kg tool with a speed of 3.20 m /
    11·1 answer
  • What volume is occupied by one mole of gas at stp?
    5·1 answer
  • What problem is caused by maps being two-dimensional?
    5·2 answers
  • What is the work done on the object by the machine.​
    10·1 answer
  • When placed at a certain point, a
    13·1 answer
  • Fill in the blanks! Please, help me ASAP ✌
    9·1 answer
  • No matter what values of m and k you used for the spring, what is the ratio of the period to k m.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!