Question 11 (Choice 2) - (a) - CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Physics - Solutions to CBSE Sample Paper - Physics Class 12

Last updated at July 19, 2026 by

(a) "If the slits in Young's double slit experiment are identical, then intensity at any point on the screen may vary between zero and four times to the intensity due to single slit". Justify the above statement through a relevant mathematical expression. 

Answer

[SQP Term 2] (a) "If the slits in Young's double slit experiment are - CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Physics

Remove Ads

Transcript

Question 11 (Choice 2) (a) If the slits in Young's double slit experiment are identical, then intensity at any point on the screen may vary between zero and four times to the intensity due to single slit". Justify the above statement through a relevant mathematical expression. The total intensity at point where the point where the phase difference is ∅, is given by 𝐼 = 𝐼_1+𝐼_2+2√(𝐼_1 𝐼_2 ) cos⁡"∅" . Here 𝐼_1 and 𝐼_2 are the intensities of two individual sources which are equal. When ∅ is 0, 𝐼=〖4𝐼〗_1 When ∅ is 90°, 𝐼=0 Thus intensity on the screen varies between 〖4𝐼〗_1 and 0.

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.