Wave-Optics Theoretical Important Questions in Physics for Class-XII Pdf Download
Access essential theoretical questions on Wave Optics for Class-12 Physics. Get the PDF download now to strengthen your exam preparation and excel in your studies!
Chapter 10 : Wave Optics
- Wave Optics.
- Wave Front and Hygen’s Principle, Reflection and Refraction of plane Wave at a plane surface using Wave fronts.
- Proof of law Of Reflection and Refraction using Huygen’s Principle.
- IInterference Young’s double slit experiment and expression for fringe width, coherent sources and sustained Interference of light.
- Diffraction due to a single slit, width of central maximum.
- Polarisation , Plane Polarised light, Brewster Law, uses of plane polarized light and Polaroids.
Wave-Optics
1. Define wave front. State Huygens principle and verify Snell’s law.
2. State Huygens principle and prove the laws of reflection on the basis of wave theory.
3. What do you mean by interference of light? Explain in brief the Young’s double slit
experiment.
4. What are the coherent sources? Write the conditions for the sustained interference
pattern. Also draw the intensity v/s path difference curve.
5. Find the conditions for constructive and destructive interference. How does the intensity
depend on the width of slit?
6. Find the expression for the fringe width. What is the effect on the fringe width if the
whole apparatus (YDSE) is completely immersed in a liquid of refractive index μ?
7. What do you mean by diffraction of light and state the condition for the diffraction?
Obtain the conditions for secondary maxima and minima. Also draw the intensity
distribution curve.
8. Prove that the width of central maxima is twice the width of the secondary maxima.
How does the width of central maxima depend on the width of the slit?
9. State Brewster’s law and prove that the reflected and refracted rays are mutually
perpendicular at the angle of polarization.
10. State law of Malus and draw an intensity V/s angle between the plane of transmission of
polarizer and analyzer.
11. What is a Polaroid? How are they constructed? Mention their important applications.
12. Explain Polarization of light. Give any one method to produce plane polarized light.
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