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
ella [17]
3 years ago
14

What is the minimum (non-zero) thickness of a benzene (n = 1.501) thin film that will result in constructive interference when v

iewed at normal incidence and illuminated with orange light (λvacuum = 615 nm)? A glass slide (ng = 1.620) supports the thin film.
Chemistry
1 answer:
ad-work [718]3 years ago
4 0

Explanation:

At each reflecting surface (benzene and glass) there will be 180 degree phase change.

Now, for constructive interference the optical path in benzene is \lambda.

Formula to calculate thickness of a benzene thin film is as follows.

     Optical path length through benzene (\lambda) = 2 \times n \times d

Hence, substituting the given values into the above formula as follows.

    Optical path length through benzene = 2 \times n \times d

                   d = \frac{\text{Optical path length through benzene}}{2 \times n}

                       = \frac{\lambda}{2 \times n}  

                       = \frac{615 \times 10^{-9}}{2 \times 1.501}   (as 1 nm = 10^{-9}m

                       = 204.9 m          

Thus, we can conclude that minimum thickness of benzene is 204.9 m.

You might be interested in
How many moles are in 2.3 grams of phosphorus? :(
tatiyna

Answer:

there are 0.074 moles in 2.3 grams of phosphorus

4 0
3 years ago
1. What is the mass of 105.00 moles of H20?
stepladder [879]

The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol.

Explanation:

5 0
3 years ago
Read 2 more answers
So anyone wanna be a Good Samaritan and help ya girl out
goldenfox [79]

The answer is JESUS BECAUSE HE IS ALWAYS THE ANSWER

8 0
3 years ago
1. How much heat (in calories) is needed to raise 20 g of H2O from 5°C to 40°C? (c = 1.0 cal/g °C)
KIM [24]

Answer:

700 calories

Explanation:

Using the formula below:

Q = m × c × ∆T

Where;

Q = amount of heat required (calories)

m = mass of substance (g)

c = specific heat of substance (cal/g°C)

∆T = change in temperature (°C)

According to this question, the following information was provided;

Q = ?

m = 20g

c = 1.0 cal/g °C

∆T = 40°C - 5°C = 35°C

Using the formula; Q = m × c × ∆T

Q = 20 × 1 × 35

Q = 700 calories

Hence, 700 cal of heat energy is needed to raise 20 g of H2O from 5°C to 40°C.

6 0
3 years ago
Sixty liters of a gas were collected over water when the barometer read 663 mmhg , and the temperature was 20∘c. what volume wou
lesya [120]
First, let's compute the number of moles in the system assuming ideal gas behavior. 

PV = nRT
(663 mmHg)(1atm/760 mmHg)(60 L) = n(0.0821 L-atm/mol-K)(20+273 K)
Solving for n,
n = 2.176 moles

At standard conditions, the standard molar volume is 22.4 L/mol. Thus,

Standard volume = 22.4 L/mol * 2.176 mol =<em> 48.74 L</em>
3 0
3 years ago
Other questions:
  • Use the shell model to explain why a potassium atom, k, is larger than a sodium atom, na.
    10·1 answer
  • How many significant figures are in the measurement 10,010 grams?
    10·1 answer
  • Help me ASAP!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • About 20-25% of the 92 natural elements are known to be essential to life. which four of these elements make up approximately 96
    15·1 answer
  • What is the primary source of energy for most ecosystems
    13·2 answers
  • Please help me, I’ll mark you the highest you can get
    8·1 answer
  • If the parents of these flowers were red/white, what would the offspring of the pink flowers be
    15·1 answer
  • When a fast moving particle runs into a slower moving particle<br> what happens ?
    9·1 answer
  • Which ion dissociates in Acids?<br><br> A- ООН-<br> B- ОН+<br> C- ОН+<br> D- COOH
    11·1 answer
  • Which two factors decrease as the averagespeed of the particles in a sample
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!