Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

A transparent glass plate of thickness 0.5 mm and refractive index 1.5 is placed infront of one of the slits in a double slit experiment. If the wavelength of light used is 6000 A0, the ratio of maximum to minimum intensity  in the interference pattern is 25/4. Then the ratio of intensity of transmitted light to that of the light incident on thin transparent glass plate is

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

a

7 : 3

b

3 : 7

c

9 : 7

d

9 : 49

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

\frac{{{I_{\max }}}}{{{I_{\min }}}} = \frac{{25}}{4} \Rightarrow \\left ( \frac{\sqrt{I_1}+\sqrt{I_2}}{\sqrt{I_1-\sqrt{I_2}}} \right )^2=\frac{25}{4}

\frac{{\sqrt {{I_1}} + \sqrt {{I_2}} }}{{\sqrt {{I_1}} - \sqrt {{I_2}} }} = \sqrt {\frac{{25}}{4}} = \frac{5}{2} \Rightarrow \frac{{\sqrt {{I_1}} }}{{\sqrt {{I_2}} }} = \frac{{5 + 2}}{{5 - 2}} = \frac{7}{3}\

\Rightarrow \frac{{{I_1}}}{{{I_2}}} = {\left( {\frac{7}{3}} \right)^2} = \frac{{49}}{9}\

The ratio of intensity of light  transmitted  (I2) to the incident  (I1) on thin transparent film is \frac{{{I_2}}}{{{I_1}}} = \frac{9}{{49}}\

Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring