MTG NEET Physics
In Fraunhofer diffraction pattern, slit width is 0.2mm and screen is at 2 m away from the lens. If wavelength of light used is 5000Å, then the distance between the first minimum on either side of the central maximum is (θ is small and measured in radian)
11
Nov
In Fraunhofer diffraction pattern, slit width is 0.2mm and screen is at 2 m away from the lens. If wavelength of light used is 5000Å, then the distance between the first minimum on either side of the central maximum is (θ is small and measured in radian) In Fraunhofer diffraction pattern slit width is 0.2mm [...]
For what distance is ray optics a good approximation when the aperture is 4 mm and the wavelength of light is 400 nm?
11
Nov
For what distance is ray optics a good approximation when the aperture is 4 mm and the wavelength of light is 400 nm? For what distance is ray optics a good approximation when the aperture is 4 mm and the wavelength of light is 400 nm? November 11, 2020 Category: Chapter 10 - Wave Optics [...]
Light of wavelength 600ηm is incident normally on a slit of width 0.2mm. The angular width of central maxima in the diffraction pattern is : (measured from minimum to minimum)
11
Nov
Light of wavelength 600ηm is incident normally on a slit of width 0.2mm. The angular width of central maxima in the diffraction pattern is : (measured from minimum to minimum) Light of wavelength 600ηm is incident normally on a slit of width 0.2mm. The angular width of central maxima in the diffraction pattern is : [...]
In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of 30∘. The direction θ of the first secondary maximum is given by :
11
Nov
In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of 30∘. The direction θ of the first secondary maximum is given by : In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm the [...]
A parallel beam of monochromatic light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of the incident beam. At the first minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of the slit is :
11
Nov
A parallel beam of monochromatic light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of the incident beam. At the first minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of the slit is : In [...]
White light may be considered to be mixture of wave with λ. ranging between 3900 A˚ and 7800 A˚. An oil film of thickness 10,000 A˚ is examined normally by the reflected light. If examined normally by the reflected light. If μ = 1.4, then the film appears bright for
11
Nov
White light may be considered to be mixture of wave with λ. ranging between 3900 A˚ and 7800 A˚. An oil film of thickness 10,000 A˚ is examined normally by the reflected light. If examined normally by the reflected light. If μ = 1.4, then the film appears bright for 000 A˚ is examined normally [...]
The maximum intensity in case of interference of n identical waves each of intensity I0 if the interference is (a) coherent and (b) incoherent.
11
Nov
The maximum intensity in case of interference of n identical waves each of intensity I0 if the interference is (a) coherent and (b) incoherent. The maximum intensity in case of interference of n identical waves each of intensity I0 if the interference is (a) coherent and (b) incoherent. November 11, 2020 Category: Chapter 10 - [...]
In Young’s double slit experiment, in an interference pattern second minimum is observed exactly in front of one slit. The distance between the two coherent sources is d and the distance between source and screen is D . The wavelength of light source used is :
11
Nov
In Young’s double slit experiment, in an interference pattern second minimum is observed exactly in front of one slit. The distance between the two coherent sources is d and the distance between source and screen is D . The wavelength of light source used is : In Young's double slit experiment the source is white [...]
Two coherent sources ‘P’ and ‘Q’ produce interference at point ‘A’ on the screen where there is a dark band which is formed between 4th bright band and 5th bright band. Wavelength of light used is 6000 A˚. The path difference between PA and QA is
11
Nov
Two coherent sources ‘P’ and ‘Q’ produce interference at point ‘A’ on the screen where there is a dark band which is formed between 4th bright band and 5th bright band. Wavelength of light used is 6000 A˚. The path difference between PA and QA is In Young's double slit experiment the source is white [...]
Interference fringes are produced on a screen by using two light sources of intensities ‘I’ and ‘9I’. The phase difference between the beams is π2 at point P and π at point Q on the screen. The difference between the resultant intensities at point P and Q is:
11
Nov
Interference fringes are produced on a screen by using two light sources of intensities ‘I’ and ‘9I’. The phase difference between the beams is π2 at point P and π at point Q on the screen. The difference between the resultant intensities at point P and Q is: In Young's double slit experiment the source [...]