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
krok68 [10]
3 years ago
14

A diffraction grating with 270 lines per mm is used in an experiment to study the visible spectrum of a gas discharge tube. 1. A

t what angle from the beam axis will the fourth order peak occur if the tube emits light with wavelength of 665.0 nm?2. At what angle will the second order peak occur?
Physics
1 answer:
VikaD [51]3 years ago
6 0

Answer:

1) θ = 45.91°

2) θ = 21.04°

Explanation:

We are given;

Wavelength; λ = 665 nm = 6.65 × 10^(-7) m.

Distance between slits; d = 1mm/270 = 1/270 mm = (1/270) × 10^(-3) m

1) To find the angle, we will use the formula;

d sin θ = mλ

Where m is the order of peak which in this question is 4.

Thus, we have;

sin θ = mλ/d

sin θ = (4 × 6.65 × 10^(-7))/((1/270) × 10^(-3))

sin θ = 0.7183

θ = sin^(-1) 0.7183

θ = 45.91°

2) Similarly, d sin θ = mλ

Where m is the order of peak which in this question is 2. Thus;

sin θ = (2 × 6.65 × 10^(-7))/((1/270) × 10^(-3))

sin θ = 0.3591

θ = sin^(-1) 0.3591

θ = 21.04°

You might be interested in
What is the efficiency of a device that takes 400J of heat and does 120J of work while giving off 280 J of heat
zubka84 [21]

Answer:

30%

Explanation:

Efficiency = useful work / heat absorbed x 100

= 120/400 x 100

= 0.3 x 100

= 30%

6 0
4 years ago
What are some other examples of a force acting on an object without<br> touching it?
a_sh-v [17]
An example would be gravity
8 0
3 years ago
Which statement is the best interpretation of the ray diagram shown?
n200080 [17]

Answer:

Explanation:

First off, this lens is concave. Second, the image is obviously smaller, and third, the only thing that is NOT obvious, is the fact that real images are always upside down and virtual images are always right-side-up. So the choice you're looking for is D.

6 0
3 years ago
A passenger is running inside a stationary train with some speed and looks at the person standing on the platform. Describe the
Lubov Fominskaja [6]

Answer:

Doppler effect

Explanation:

this means that at one point when the person running is close to the observer it will appear to run fast but slower as he moves away from the observer

4 0
2 years ago
A person runs up several flights of stairs and is exhausted at the top. Later the same person walks up the same stairs and does
KIM [24]

Answer:

Explanation:

Work done by the person depends on its mass and the height raised. It also depends on the acceleration due to gravity.

As the height raised and the mass of person is same. The value of acceleration due to gravity is also constant So, the work done is also same in both the cases.

6 0
3 years ago
Other questions:
  • Will an object with more mass roll faster down a hill?
    9·1 answer
  • Evolutionary sequence of our sun
    10·1 answer
  • show that if a particle is in a stationary state at a given time it will always remain in a stationary state.
    12·1 answer
  • Ceres, the largest asteroid known, has a mass of roughly 8.7 x1020 kg. If Ceres passes within 12,000km of the spaceship (2.75e4k
    15·1 answer
  • If it is June or July and you live in the northern hemisphere, describe the position of the Earth in relation to the sun and wha
    10·1 answer
  • The greatest increase in the inertia of an object would be produced by increasing the
    11·2 answers
  • Ms. Lachance has to pick up her daughter from the airport and is running late. As she pulls her car out of the driveway and star
    12·1 answer
  • Transistor circuits are sometimes referred to as switching circuits - Why is this?​
    13·1 answer
  • A barge is pulled by two tugboats. If the resultant of the forces exerted by the
    6·1 answer
  • A runner exerts 2,000 j of work while traveling 10 m along a horizontal stretch of track. what average force was exerted by the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!