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
I am Lyosha [343]
3 years ago
8

Light of wavelength 633 nm from a He-Ne laser passes through a circular aperture and is observed on a screen 4.0 m behind the ap

erture. The diameter of the central bright area is 5.4 cm. What is the diameter of the aperture?
Physics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

The answer is "1.144 \times 10^{-4} \ m".

Explanation:

w=\frac{2.44 \lambda L}{D}\\\\D=\frac{2.44 \lambda L}{w}\\\\

   =\frac{2.44 \times 633 \times 10^{-9}\times 4 }{0.054}\\\\=\frac{6178.08\times 10^{-9}}{0.054}\\\\=1.144 \times 10^{-4} \ m

You might be interested in
Help with all of them plsss
MakcuM [25]
I):final velocity=initial velocity+acceleration due to gravity*time of travel

Therefore,
v=0+9.8*3.1
=30.38 m/s

If by floor you meant water bed then i think there isn't enough info in the question.
8 0
3 years ago
a 40 kilogramstudent runs up a staircase to a floor that is 5.0 meters higher than her starting point in 7.0 seconds. the studen
Wittaler [7]

When she reaches the top, she has more potential energy than she had at the bottom.

         Potential energy = (mass) x (gravity) x (height)

                                     = (40 kg) x (9.8 m/s²) x (5 m)

                                     =    1,960 more joules .

         Power = (energy) / (time)

                     = (1,960 joules) / (7 seconds)

                     =         280 watts

                    (about 0.375 horsepower) 
3 0
3 years ago
Which describes an object’s velocity that changes by the same amount each second?
Grace [21]
The answer is constant acceleration.
7 0
3 years ago
Read 2 more answers
Why are SI units used for scientific works ?​
sineoko [7]
Energy can be one answer! There are many, but energy is a main one.
5 0
3 years ago
Read 2 more answers
Một nười thả 420g chì ở nhiệt độ 100°C và 260g nước ở nhiệt độ 58°C làm cho nước nóng lên tới 60°C . Cho nhiệt dung riêng của nư
vlabodo [156]
Hey what language is this?
6 0
3 years ago
Other questions:
  • What is isostasy dependent on a balance between
    10·2 answers
  • Social learning theory indicates that learning occurs from _____.
    10·1 answer
  • Block A, with mass mA, is initially at rest on a horizontal floor. Block B, with mass mB, is initially at rest on the horizontal
    8·1 answer
  • What is the definition of velocity? (AKS 1/DOK1)
    10·2 answers
  • Explain Why must a cooling system do work to transfer thermal energy?
    12·1 answer
  • A transformer connected to a 120-V (rms) ac line is to supply 13,000 V (rms) for a neon sign. To reduce shock hazard, a fuse is
    7·1 answer
  • In the diagram, the arrow shows the movement of electric
    8·1 answer
  • Which practice is an unsustainable way of managing resources?<br> Please help
    12·1 answer
  • Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of 450 newtons stretches a sprin
    12·1 answer
  • The student lets the toy car roll down the slope. describe how the student could find, by experiment the speed of the toy car at
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!