A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to ____________________?

Related Mcqs:

In double slit experiment we observe _____________________?

A. interference fringes only B. diffraction fringes only C. both interference and diffraction fringes D. polirized frringes...

When one mirror of a Michelson Interferometer is moved a distance of 0.5 mm we observe 2000 fringes. What will be wavelength of light used ?

A. 5000 nm B. 5000A C. 500m D. 2000um...

Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?

A. 4 x 10-10 m B. 2 x 10-10 m C. 0.02×10-10m D. 20×10-10m...

According to Einstein light travels form one place to another in the form of ________________?

A. waves B. particles C. photons D. it was not his discovery...

Gives the definition of metre in terms of wavelength of red cadmium light ___________________?

A. Newton B. Einstein C. Michelson D. Galileo...