Question

For minima to take place between two monochromatic light waves of wavelength $\lambda ,$ the path difference should be

• A. $n\lambda$
• B. $\left(2n-1\right)\frac{\lambda }{4}$
• C. $\left(2n-1\right)\frac{\lambda }{2}$
• D. $\left(2n-1\right)\lambda$

Answer 1

The correct option is C $\left(2n-1\right)\frac{\lambda }{2}$

For minima,
Path diff $=\left(2n-1\right)\frac{\lambda }{2}$