Question:medium
Calculate the wavelength of light used in an interference experiment from the following data: Fringe width \(=0.03\) cm. Distance between the slits and eyepiece through which interference pattern is observed is 1 m. Distance between the images of the two virtual sources when a convex lens of focal length 16 cm is used at a distance of 80 cm from the eyepiece is 0.8 cm.
Calculate the wavelength of light used in an interference experiment from the following data: Fringe width \(=0.03\) cm. Distance between the slits and eyepiece through which interference pattern is observed is 1 m. Distance between the images of the two virtual sources when a convex lens of focal length 16 cm is used at a distance of 80 cm from the eyepiece is 0.8 cm.
Show Hint
In YDSE problems:
\[
\beta = \frac{\lambda D}{d}
\]
Lens is often used only to measure slit separation.
Updated On: Mar 23, 2026
- \(0.0006\,\text{\AA}\)
- \(0.0006\,\text{m}\)
- \(6000\,\text{\AA}\)
- \(600\,\text{\AA}\)
Show Solution
The Correct Option is C
Solution and Explanation
Was this answer helpful?
0
Top Questions on Wave Optics
- In a Young's double-slit experiment, two waves each of intensity I superpose each other and produce an interference pattern. Prove that the resultant intensities at maxima and minima are 4I and zero respectively.
- CBSE Class XII - 2026
- Physics
- Wave Optics
- Assertion : In Young’s double-slit experiment, the fringe width for dark and bright fringes is the same. Reason (R): Fringe width is given by \( \beta = \frac{\lambda D}{d} \), where symbols have their usual meanings.
- CBSE Class XII - 2026
- Physics
- Wave Optics
- A ray of light MN is incident normally on the face corresponding with side AB of a prism with an isosceles right-angled triangular base ABC. Trace the path of the ray as it passes through the prism when the refractive index of the prism material is \( \sqrt{2} \), and \( \sqrt{3} \).
- CBSE Class XII - 2026
- Physics
- Wave Optics
- When monochromatic light is incident on a surface separating two media, the refracted and reflected light both have the same frequency as the incident frequency but the wavelength of refracted light is different. Explain why.
- CBSE Class XII - 2026
- Physics
- Wave Optics
- Want to practice more? Try solving extra ecology questions todayView All Questions