Start Free Mock LoginAlready registered? Login here

Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsYDSEEasy2 minPYQ_2020

PhysicsEasysingle choice

In Young's experiment, the ratio of maximum and minimum intensities in the fringe system is $9 : 1$ . The ratio of amplitudes of coherent sources is

Options:

Answer:

Solution:

$\frac{I_{m a x}}{I_{m i n} = \frac{{(a_{1} + a_{2})}^{2}}{{(a_{1} - a_{2})}^{2}}}$

$\frac{9}{1} = {(\frac{a_{1} + a_{2}}{a_{1} - a_{2}})}^{2}$

$\frac{a_{1} + a_{2}}{a_{1} - a_{2}} = \frac{3}{1}$

By solving this:

$a_{1} + a_{2} = 3 a_{1} - 3 a_{2}$

$4 a_{2} = 2 a_{1}$

$\frac{a_{1}}{a_{2}} = \frac{2}{1}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave OpticsSubtopic:YDSE

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...