why is red light used as an indicator (it has something to do with scattering effect of light )
Rahul Jiji George , 9 Years ago
Grade 10
Wave Optics> why is red light used as an indicator (it...
6 Answers
Abhinav
Last Activity: 9 Years ago
White light is made up of 7 colors. Red colour, due to its longer wavelength does not get scattered by the particles in the atmosphere and hence reaches our eyes more distinctly than the other colors.
grenade
Last Activity: 9 Years ago
red light has longer wavelength and do not get scattered in the atmosphere (dust, dew, moisture)
this it the reason the reason that why red cross is red in colour
i is also used to give signals
approve if useful
Rahul Jiji George
Last Activity: 9 Years ago
why doesnt it scatter?
Gman Namg
Last Activity: 9 Years ago
if a light is having shorter wavelength then it is scatterd because of the sunlight partivles present in the atmosphere and thus for a light having longer wavelength should least scatter
approve if useful
Abhinav
Last Activity: 9 Years ago
because wavelength comparable to size of particle of air scattred more.
shubham sharda
Last Activity: 9 Years ago
The red light scatters the least because it has greatest wavelength and hence it travels the farthest . Thus red light is used as indicator.
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free
Enter text here...
Other Related Questions on Wave Optics
An oscillator consists of a block of mass 512 g connected to a spring. When set into oscillation with amplitude 34.7 cm, it is observed to repeat its motion every 0.484 s. Find (a) the period, (b) the frequency, (c) the angular frequency, (d) the force constant, (e) the maximum speed, and ( f ) the maximum force exerted on the block.
Wave Optics
0 Answer Available
Last Activity: 2 Year ago(s)
A PLANE TRANSMISSION GRATING HAS 45000 LINES. DETERMINE ITS RESOLVING POWER IN THE SECOND ORDER FOR WAVELENGTH OF 5000A.
Wave Optics
0 Answer Available
Last Activity: 2 Year ago(s)
A PLANE TRANSMISSION GRATING HAS 45000 LINES. DETERMINE ITS RESOLVING POWER IN THE SECOND ORDER FOR WAVELENGTH OF 5000A.
Wave Optics
0 Answer Available
Last Activity: 2 Year ago(s)
If V-numer of a multi mode fiber is 3. Calculate the no.of modes if it is step index and graded index fiber multimode fiber (rounded off)?
Wave Optics
1 Answer Available
Last Activity: 2 Year ago(s)
What is the difference between angular position and angular fringe width... I always get confused .
Wave Optics
2 Answer Available
Last Activity: 2 Year ago(s)