Diffraction Grating - all visible light?

AI Thread Summary
To determine the smallest grating spacing for observing the entire visible spectrum (400nm to 700nm), the equation nλ = d sin θ is essential. The maximum wavelength for first-order diffraction is 700nm, and for second-order, it is 1400nm. The discussion raises questions about how to calculate the maximum angle for observing these wavelengths. Clarification on how to apply the grating equation effectively is needed. Understanding these principles will help in solving the problem accurately.
clamatoman
Messages
24
Reaction score
0

Homework Statement


Find the smallest grating spacing that let's you see the entire visible spectrum.
400nm to 700nm comprises the visible light spectrum.
no other information is given.

Homework Equations


nλ=d sin θ

The Attempt at a Solution


I am not sure how to start as all i have been given is a spectrum of wavelengths...?
 
Physics news on Phys.org
Well, apparently its 700nm. And 1400 nm for the second order.
 
What is the maximum angle where a wavelength can be observed?
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Similar threads

Diffraction pattern from a grating
Replies
3
Views
844
Diffraction Grating and Visible Light
Replies
8
Views
7K
Problem on Diffraction Grating and Laser Crystallography
Replies
10
Views
2K
Calculating the Number of Lines for a Diffraction Grating
Replies
3
Views
2K
Why Does Light Diminish with a Phase Difference of 5λ?
Replies
6
Views
876
Electron Velocity Diffraction Grating Problem
Replies
4
Views
1K
Diffraction Grating wavelength
Replies
3
Views
2K
Why Do Second and Third Order Spectra Overlap in Diffraction Grating?
Replies
3
Views
5K
Diffraction Grating: Possible variables for Experiment
Replies
5
Views
2K
Problem with wave optics - diffraction grating?
Replies
5
Views
7K

Hot Threads

Recent Insights

Back
Top