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
MAVERICK [17]
3 years ago
11

Determine the wavelength of a monochromatic beam of light that impinges on a double slit with a slit separation of 2.80 mm. Brig

ht fringes are produced on a screen 1.20 m from the double slit. The brights are separated by .024m.
Physics
1 answer:
Maslowich3 years ago
5 0

Answer:

\lambda=5.60\times 10^{-5}\ m

Explanation:

For constructive interference, the expression is:

d\times sin\theta=m\times \lambda

Where, m = 1, 2, .....

d is the distance between the slits.

The formula can be written as:

sin\theta=\frac {\lambda}{d}\times m ....1

The location of the bright fringe is determined by :

y=L\times tan\theta

Where, L is the distance between the slit and the screen.

For small angle , sin\theta=tan\theta

So,  

Formula becomes:

y=L\times sin\theta

Using 1, we get:

y=L\times \frac {\lambda}{d}\times m

For two fringes:

The formula is:

\Delta y=L\times \frac {\lambda}{d}\times \Delta m

For first and second bright fringe,  

\Delta m=1

Given that:

\Delta y=0.024\ m

d = 2.80 mm

L = 1.20 m  

Also,  

1 mm = 10⁻³ m

d = 2.80×10⁻³ m

Applying in the formula,  

0.024=1.20\times \frac {\lambda}{2.80\times 10^{-3}}\times 1

\lambda=5.60\times 10^{-5}\ m

You might be interested in
Suppose a ray of light traveling in a material with an index of refraction n a reaches an interface with a material having an in
KATRIN_1 [288]

Answer: C and D

Explanation: One of the first rule for total internal reflection to occur is that the ray must move from a dense to a less dense medium, hence refractive index of medium a must be greater than that of b.

When a ray moves from a dense to a less dense medium, the refracted ray moves away from the normal thus increasing the size of the angle of refraction (total internal refraction occurs when the angle of refraction is 90° and the angle of incidence at this point is known as the critical angle), hence the angle of incidence must be greater than the critical angle.

These points verifies option C and D

5 0
3 years ago
WHY ARE ALL GIRLS THE SAME, don't even say their not cause if you say that then I guess you don't have a life!!!!!​
Zinaida [17]
Because they are. it’s just how life works
6 0
3 years ago
Two balls, each with a mass of 0.5 kg, collide on a pool table. Is the law of conservation of momentum satisfied in the collisio
Dmitriy789 [7]

During the collision between two balls on the pool table there is no external force along the line of collision between them

Since there is no external force on it so here we can say

F = 0 = \frac{\Delta P}{\Delta t}

here we have

\Delta P = 0

so we can say

P_i = P_f

since there is no external force so we can say during the collision the momentum of two balls will remain conserved

7 0
3 years ago
Read 2 more answers
Diamonds Choose one:
Daniel [21]

Answer:

D. are brought from the mantle to the surface in magma that hardens into komatiite.

Explanation:

Diamond :

 It is the hardest form of carbon.The atomic atoms arrange in the cubic crystal structure and this is known as diamond cubic.Another form of the diamond at room temperature is graphite.This is used for making jewelry.This is also used in the cutting process because it has high strength.

Therefore the correct option for the diamond is D.

4 0
3 years ago
The half-life of the reaction gets shorter as the initial concentration is increased. True or False
Art [367]

True

The half-life isn’t applicable to a first order reaction because it does not rely on the concentration of reactant present. However the 2nd order reaction is dependent on the concentration of the reactant present.

The relationship between the half life and the reactant is an inverse one.

The half life is usually reduced or shortened with an increase in the concentration and vice versa.

3 0
4 years ago
Other questions:
  • A 50 g ball of clay traveling at speed v0 hits and sticks to a 1.0 kg block sitting at rest on a frictionless surface. part a wh
    7·1 answer
  • At the instant a traffic light turns green, a car starts from rest with a given constant acceleration of 0.5 m/s squared. Just a
    12·1 answer
  • How can you best identify quackery in a health service provider?
    10·1 answer
  • If you see a lightning stroke and then, 15 seconds later, hear the thunder, the lightning is about ____ miles away
    13·1 answer
  • A 3.5 kg block slides along a frictionless horizontal with a speed of 2.5 m/s. After sliding a distance of 5 m, the block makes
    15·1 answer
  • The word gymnosperm comes from two Greek words: gymno, meaning bare, and sperm, meaning_____ . Unlike other seed plants, gymnosp
    14·1 answer
  • The electric potential, when measured at a point equidistant from two particles that have charges equal in magnitude but of oppo
    6·1 answer
  • A toy car has a momentum of 3 kilogram meters per second south. The car has a 1-kilogram mass. Which is the velocity of the car?
    12·1 answer
  • A 40kg girl and a 50kg boy are facing each other on a friction-free rollerskates. The girl pushes the boy, who moves away at a s
    9·1 answer
  • Einstein's theory of general relativity is currently the best explanation of gravity.Why has this theory not been replaced with
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!