Optics Answers

An ideal gas has a volume of 100cm3³ at 1.1*10^5Pa and 27°C. What is it volume at 2*10^5Pa and 60°C?

Your teacher gives you a piece of cardboard with two pinholes on it, saying that they are separated by 205 μm ± 3%. In order to test this, you set up a double slit apparatus with the screen at a distance of 3.00 m away from the cardboard. You use a helium-neon laser (wavelength 638.2 nm) to generate an interference pattern. You measure the distance from the first to the seventh nodal line to be 56.9mm. Did your teacher give you accurate value for the separation of the pinholes?

Red light with a wavelength of 725 nm shines through a single slit, and forms a pattern on a screen placed 1.25 m away. If the width of the slit is 18.5 micrometers, find the width of the central maximum (a) in degrees and (b) in centimeters

Your teacher gives you a piece of cardboard with two pinholes on it, saying that they are separated by 205 μm ± 3%. In order to test this, you set up a double slit apparatus with the screen at a distance of 3.00 m away from the cardboard. You use a helium-neon laser (wavelength 638.2 nm) to generate an interference pattern. You measure the distance from the first to the seventh nodal line to be 56.9mm. Did your teacher give you accurate value for the separation of the pinholes?

Red light with a wavelength of 725 nm shines through a single slit, and forms a pattern on a screen placed 1.25 m away. If the width of the slit is 18.5 micrometers, find the width of the central maximum (a) in degrees and (b) in centimeters

Light from a source of wavelength 475 nm passes through a single slit and falls on a screen 2.5 m away. If the slit width is 2.00 μm, how many maxima occur, including the central maximum?

Calculate the critical angle, numerical aperture and acceptance angle for a silica fibre
in air with core refractive index 1.53 and cladding refractive index 1.47.

Explain how signal losses and noise is reduced in case of twisted pair and coaxial
cables

in a Raman experiment excitation line is 18315 /cm and stroke line 18116/cm then anti stoke line

an ordinary light reflected from glass refractive index 1.5 at an angle of incident 45° angle of refraction 28.1° reflection coefficients for perpendicular and parallel Components 0.09337 & 0.00852 respectively calculate degree of polarization
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