1800-150-456-789
FlagBACK
Flag Wave Optics> in ydse two slits are 1mm apart and scree...
question mark

in ydse two slits are 1mm apart and screen is placed 1m away from slits. calculate the fringe width when light of wave length 500 nm is used?
ii) what should be the width of each slit in order to obtain 10maxima of the double slits pattern within central maximum of single slit pattern?

Kartikeya Singh , 6 Years ago
Grade
anser 1 Answers
Arun

Last Activity: 6 Years ago

We need to obtain 10 maxima of double slit with in central maxima of single slit

For single slit, angular width of central maxima = \frac{2\lambda }{b}

or \frac{y}{d}=\frac{2\lambda }{b}or y=\frac{2\lambda D}{b}----------------------(1)

For interference pattern

Fringe width = \frac{\lambda D}{d}---------------------(2)

According to question

\frac{2\lambda D}{b}=10.\frac{\lambda D}{d}

\therefore b=\frac{d}{5}=0.2mm


 

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on wave optics

question mark
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: 3 Years ago

question mark
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: 3 Years ago

question mark
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: 3 Years ago

question mark
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: 3 Years ago

question mark
What is the difference between angular position and angular fringe width... I always get confused .
wave optics
2 Answers Available

Last Activity: 3 Years ago