CBSE Class 12 Sample Paper for 2022 Boards [Term 2] - Physics

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 April 16, 2024 by Teachoo

(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

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 β , is given by πΌ = πΌ_1+πΌ_2+2β(πΌ_1 πΌ_2 ) cosβ‘"β " . Here πΌ_1 and πΌ_2 are the intensities of two individual sources which are equal.
When β is 0, πΌ=γ4πΌγ_1
When β is 90Β°, πΌ=0
Thus intensity on the screen varies between γ4πΌγ_1 and 0.

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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