SATHEE: Optics Question 855

Optics Question 855

Question: Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is:

Options:

A) $\frac{16}{9}$

B) $\frac{7}{1}$

C) $\frac{7}{1}$

D) $\frac{49}{1}$

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Answer:

Correct Answer: D

Solution:

[d] $I n t e n s i t y \propto (a m p l i t u d e)$

$\frac{I_{1}}{I_{2}} = \frac{16}{9} = \frac{a_{1}^{2}}{a_{2}^{2}} \Rightarrow a_{1} = 4$ ; $a_{2} = 3$

Therefore the ratio of intensities of bright and dark parts $\frac{I_{B r i g h t}}{I_{D a r k}} = \frac{{(a_{1} + a_{2})}^{2}}{{(a_{1} - a_{2})}^{2}} = \frac{{(4 + 3)}^{2}}{{(4 - 3)}^{2}} = \frac{49}{1}$

Optics Question 855

Question: Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is:

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Optics Question 855

Question: Two monochromatic light beams of intensity 16 and 9 units are interfering. The ratio of intensities of bright and dark parts of the resultant pattern is:

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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