Optics Answers

Diffraction grating A has 16 000 lines/cm, and diffraction grating B has 12 000 lines/cm. Light of the same wavelength is sent through both gratings to a screen located a distance L from the gratings. The spacing of the maxima for grating A is 3.46 cm. What is the spacing for the maximum for grating B?

A blonde hair was used to form one end of an air wedge with two glass plates. The glass plates were in contact at the other end. When light of wavelength 460 nm was reflected from the air wedge, the 320th dark fringe coincided with the position of the hair. What was the thickness of the hair?

How can a single slit cause interference in light?

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Hi can I please get answers to questions e and f from the above link?

The angle of diffracted X-rays is 90 degree from the incident direction of X-rays. The interplanner seperation of the planes responsible for the diffraction is?

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Can I please get help with these assignment questions?

What would be your specifications for the plane diffraction grating to view the mercury spectral line 577nm of the third order? Explain

The He-Ne laser line 6328 Angstrom has bandwidth 0.1 Angstrom. The coherence length of the light beam is?

A parallel beam of light of wavelength 5460 Angstrom is incident at an angle of 30 degree on a plane transmission grating with 6000lines/cm. The highest order of observables spectrum is?

A plate of thickness t behaves as a half wave plate for a light of wavelength λ. ignoring variation in refractive indices with λ, if a light of 2λ is used then plate will behave as? (i know answer is quarter wave plate. But i don't know why... So please explain me)