Optics Two Marks Questions

12th Standard EM

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Physics

Time : 00:45:00 Hrs
Total Marks : 30
    15 x 2 = 30
  1. What is Snell's window?

  2. Write a note on optical fibre.

  3. What are primary focus and secondary focus of convex lens?

  4. What are the sign conventions followed for lenses?

  5. What is Rayleigh's scattering?

  6. What is a diffraction grating?

  7. What are resolution and resolving power?

  8. What is Rayleigh's criterion?

  9. What is double refraction?

  10. Why is oil immersed objective preferred in a microscope?

  11. What are the advantages and disadvantages of using a reflecting telescope?

  12. What are the uses of spectrometer?

  13. What is myopia? What is its remedy?

  14. What is presbyopia?

  15. What is astigmatismt?

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