Home
Class 12
PHYSICS
If the intensity of light in double slit...

If the intensity of light in double slit experiment from slit 1 and slit 2 are `l_(0)` and `25l_(0)` respectively, find the ratio of intensities of light at minima and maxima in the interference pattern.

A

0

B

`(4)/(9)`

C

`(24)/(26)`

D

`(4)/(6)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to find the ratio of intensities at minima and maxima in the interference pattern created by two slits in a double slit experiment. Given that the intensity from slit 1 is \( I_0 \) and from slit 2 is \( 25I_0 \), we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Intensities**: - Let \( I_1 = I_0 \) (intensity from slit 1). - Let \( I_2 = 25I_0 \) (intensity from slit 2). 2. **Calculate the Maximum Intensity**: - The formula for the maximum intensity \( I_{\text{max}} \) in an interference pattern is given by: \[ I_{\text{max}} = I_1 + I_2 + 2 \sqrt{I_1 I_2} \] - Substituting the values: \[ I_{\text{max}} = I_0 + 25I_0 + 2 \sqrt{I_0 \cdot 25I_0} \] - Simplifying this: \[ I_{\text{max}} = 26I_0 + 2 \sqrt{25I_0^2} = 26I_0 + 10I_0 = 36I_0 \] 3. **Calculate the Minimum Intensity**: - The formula for the minimum intensity \( I_{\text{min}} \) in an interference pattern is given by: \[ I_{\text{min}} = I_1 + I_2 - 2 \sqrt{I_1 I_2} \] - Substituting the values: \[ I_{\text{min}} = I_0 + 25I_0 - 2 \sqrt{I_0 \cdot 25I_0} \] - Simplifying this: \[ I_{\text{min}} = 26I_0 - 10I_0 = 16I_0 \] 4. **Find the Ratio of Intensities**: - Now we can find the ratio of minimum intensity to maximum intensity: \[ \text{Ratio} = \frac{I_{\text{min}}}{I_{\text{max}}} = \frac{16I_0}{36I_0} = \frac{16}{36} = \frac{4}{9} \] ### Final Answer: The ratio of intensities at minima and maxima in the interference pattern is \( \frac{4}{9} \).

To solve the problem, we need to find the ratio of intensities at minima and maxima in the interference pattern created by two slits in a double slit experiment. Given that the intensity from slit 1 is \( I_0 \) and from slit 2 is \( 25I_0 \), we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Intensities**: - Let \( I_1 = I_0 \) (intensity from slit 1). - Let \( I_2 = 25I_0 \) (intensity from slit 2). ...
Promotional Banner

Similar Questions

Explore conceptually related problems

In a Young's slit experiment, the slit widths are in ratio 1:2. Determine the ratio of intensity of minima and maxima in the obtained interference pattern.

If two slits in Young's double-slit experiment have width ratio 9:1, deduce the ratio of intensity at maxima and minima in the interference pattern.

Two coherent sources of light of intensity ratio n are employed in an interference experiment. The ratio of the intensities of the maxima and minima in the interference pattern is

If the two slits in Young's experiment have width ratio 1 : 4 , deduce the ratio of intensity at maxima and minima in the intereference pattern.

If the width ratio of the two slits in Young's double slit experiment is 4:1, then the ratio of intensity at the maxima and minima in the interference patternn will be

(a) The ratio of the widths of two slits in Young's double-slit experiment is 4 : 1. Evaluate the ratio of intensities at maxima and minima in the interference pattern. (b) Does the appearance of bright and dark fringes in the interference pattern violate, in any way, conservation of energy ? Explain.

The intensity of the light coming from one of the slits in a Young's double slit experiment is double the intensity from the other slit. Find the ratio of the maximum intensity to the minimum intensity in the interference fringe pattern observed.

In Young’s double slit experiment, the intensity of light coming from the first slit is double the intensity from the second slit. The ratio of the maximum intensity to the minimum intensity on the interference fringe pattern observed is