Engineering Physics 2
- Explain the top down approach and bottom up approach to prepare nanomaterials. Top-down approach: In Top-down approach a bulk solids are dis-assembled that is broken or dissociated into finer pieces until the particles... 1
- Difference between Diffraction and Interference Interference Diffraction Interference may be defined as waves emerging from two different sources, producing different wave fronts. Diffract... 1
- Monochromatic light of wavelength 6560 A0 falls normally on a grating 2 cm wide. The first order 8506 lines per 2 cm 1
- What is the longest wavelength that can be observed in the 3rd order for a transmission grating having 7000 lines/cm wavelength is 4761.904 A^o 1
- A monochromatic light from He-Ne laser λ=6328A0 is incident normally on a diffraction grating having 6000 lines/cm. view image f0r solution 2
- In an experiment with grating,3rd order spectral line of wavelength λ coincides with the 4th order spectral answer is 6656 A^o 1
- A diffraction grating used at normal incidence gives a line 5400Ao in certain order superimposed 3087 lines per cm 1
- How many orders will be observed by grating having 4000 lines per cm,if it is illuminated by light of wavelength order is 3-5 2
- A light of wavelength 6500 A0 falls normally on a grating surface. The first order spectrum is obtained grating element is 1.947*10⁻⁴cm 1
- In plane diffraction grating the angle of diffraction for the second order maximum for the wavelength 5000Ao is 30 no of lines in 1 cm is 5000 1
- A parallel beam of monochromatic light is incident on a plane transmission grating having 3000 lines/cm wavelength is 5555 A^o 1
- Calculate the highest order spectrum that can be obtained by a monochromatic light of wavelength 6000A0 by a grating Highest order is 2 1
- Diffraction pattern of single slit of width 0.5 cm is formed by lens of focal length 30 cm . distance between the first dark & the next bright fringe from the axis is 0.0036 cm 2
- Light of wavelength 6000A0 is incident on a slit of width 0.30 mm. The screen is placed 2 m away from the slit. a) position of the first order dark fringe = 4*10⁻³m b)width of the central bright maximum = 8 * 10⁻³ m 1
- In Fraunhofer diffraction pattern due to a single slit, the screen is at a distance of 100 cm from slit & slit is the distance between the central maximum & first order minima is 0.5893 cm 1
- A screen is placed 2 m away from a narrow slit which is illuminated with light of wavelength 6000A0.If the first minimum slit width is 0.24 mm 1
- A slit of width 2μm is illuminated by light of wavelength 6500A0.Calculate the angle at which the first minimum will Answer is 18.9655 1
- Find the half angular width of the central maximum in the Fraunhofer diffraction pattern of a slit of width Find the half angular width of the central maximum in the Fraunhofer diffraction pattern of a slit of width 12 X 10⁻⁵ cm,when illuminated by... 2
- A slit of width 0.16 mm is illuminated by a monochromatic light of wavelength 5600A0 A slit of width 0.16 mm is illuminated by a monochromatic light of wavelength 5600A⁰.Find half angular width of a principal maxima 2
- A single slit diffraction pattern is formed using white light. For what wavelength of light does the A single slit diffraction pattern is formed using white light. For what wavelength of light does the 2nd minimum coincide with the 3rd minim... 2
- Calculate the angular separation between the first order minima on either side of central maxima when slit is6 the angular separation between the first order minima 2
- A slit of width 'a' is illuminated by white light. For what value of 'a' will the first minima for red light fall A slit of width 'a' is illuminated by white light. For what value of 'a' will the first minima for red light fall at an angle of 300 2