At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between the Huygen's wavelet from the edge of the slit and the wavelet from the midpoint of the slit is :

  • Option 1)

    \frac{\pi } {2} radian

  • Option 2)

    \pi radian

  • Option 3)

    \frac{\pi } {8} radian

  • Option 4)

    \frac{\pi } {4} radian

 

Answers (1)

 

Intensity of Diffracted light -

I= I_{0}frac{sin^{2} eta }{eta ^{2}}
 

- wherein

Where

eta = frac{pi }{lambda }left ( bsin 	heta 
ight )

 

 At the first minimum, wavelet coming from edge of the slit is balanced out by wavelet coming from middle of the slit hence the phase difference between wavelet from edge of the slit to wavelet from middle of the slit is \pi radian

 


Option 1)

\frac{\pi } {2} radian

This option is incorrect

Option 2)

\pi radian

This option is correct

Option 3)

\frac{\pi } {8} radian

This option is incorrect

Option 4)

\frac{\pi } {4} radian

This option is incorrect

Most Viewed Questions

Preparation Products

Knockout NEET Aug 2021 (One Month)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 14000/- ₹ 4999/-
Buy Now
Knockout NEET Aug 2021

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 22999/- ₹ 9999/-
Buy Now
Test Series NEET Aug 2021

Unlimited Chapter Wise Tests, Unlimited Subject Wise Tests, Unlimited Full Mock Tests, Get Personalized Performance Analysis Report,.

₹ 6999/- ₹ 2999/-
Buy Now
Rank Booster NEET 2021

Booster and Kadha Video Lectures, Unlimited Full Mock Test, Adaptive Time Table, 24x7 Doubt Chat Support,.

₹ 13999/- ₹ 6999/-
Buy Now
Knockout NEET May 2022

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Mentorship from our Experts, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 34999/- ₹ 14999/-
Buy Now
Boost your Preparation for NEET 2021 with Personlized Coaching
 
Exams
Articles
Questions