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1
answer
7.2k
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1
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Calculate the cut-off parameter & the number of modes for a fiber of core diameter = 50$\mu m$, core RI = 1.50 & cladding RI = 1.48, operating at a wavelength of 1 $\mu m$.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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A soap film of RI 4/3 & thickness $1.5 \times 10^{-4}$ cm is illuminated by white light incident at an angle of $45^0$. Calculate the order of this band.
engineering physics updated 4.3 years ago by krithikkm200 • 10
4
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White light illuminates a soap film of RI 1.33 making an incidence angle of $45^0$. At what minimum thickness of the film will it appear to be yellow in color in the reflected light?
engineering physics updated 4.3 years ago by krithikkm200 • 10
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6.2k
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Find $\mu_{liq}$ if $\mu_{liq}>\mu_{water}.$
engineering physics updated 4.3 years ago by krithikkm200 • 10
0
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967
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Show that $\lambda = 7.228 \times 10^{-5} $cm will be strengthened in the reflected light.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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13k
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A soap film of RI 1.33 & thickness $6 \times 10^{-5}$ cm is viewed at angle of $35^0$ to normal.
engineering physics updated 4.3 years ago by krithikkm200 • 10
0
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986
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Calculate the thickness of soap film of RI 1.43 if a $1^{st}$ order dark band of $\lambda = 6 \times 10^{-7}$ m is observed in the refracted light corresponding to an incidence angle of $30^0$.
engineering physics updated 4.3 years ago by krithikkm200 • 10
4
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23k
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White light falls normally on a soap film of thickness $5 \times 10^{-5}$ cm & of RI 1.33. Which wavelength in the visible region will be reflected most strongly?
engineering physics updated 4.3 years ago by krithikkm200 • 10
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2.5k
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Enlist various methods for finding deflection in structures.
structural analysis updated 4.3 years ago by teamques10 ★ 70k
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3.1k
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1
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Define a conjugate beam and state the two theorems
structural analysis updated 4.3 years ago by teamques10 ★ 70k
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898
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At what thickness of the drop will the light of $\lambda = 4800 \mathring{A}$ be strongly reflected in the $3^rd$ order?
engineering physics updated 4.3 years ago by krithikkm200 • 10
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23k
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Fringes of equal thickness are observed in a thin glass wedge of RI = 1.52. Calculate the angle of wedge in arc-sec if for a light of $\lambda =5893 \mathring{A}$ the fringe spacing is found to be 1mm
engineering physics updated 4.3 years ago by krithikkm200 • 10
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A square piece of thin film with RI = 1.4 has a wedge shaped section so that its thickness at two opposite sides
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1.0k
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Find the fringe width if $\lambda = 6000 \mathring{A}$.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1
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3.7k
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1
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In the Newtons ring experiment, determine the ring number that will have double the diameter of the $40^{th}$ dark ring.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1.1k
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1
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Determine the radius of curvature of the lens in contact with plane glass.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1
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12k
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1
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Compute the maximum radius allowed for a fiber having core RI 1.47 & cladding RI 1.46. The fiber is to support only one mode at a wavelength of 1300 nm.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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982
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The fiber is coupled to a light source of wavelength 1.5 $\mu m$. Also calculate its acceptance & critical angles.
engineering physics updated 4.3 years ago by krithikkm200 • 10
0
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1
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2.2k
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1
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Transform the Cartesian coordinates (-2, 2, 3) to cylindrical coordinate system.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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2.0k
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1
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Transform the cylindrical coordinates (3, $\pi$/3.-4) to Cartesian coordinate system.
engineering physics updated 4.3 years ago by krithikkm200 • 10
1
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1
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2.1k
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If diameters of $n^{th}$& $(n+9)^{th}$ dark rings are 2.25 & 4.5 mm respectively, calculate RI of the liquid.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1
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1.3k
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1
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Find the diameter of the $5^{th}$ bright ring.
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1
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1.2k
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A white light is used to study single-slit diffraction pattern. For what $\lambda$ of light does the $2^{nd}$ minimum coincide with the $3^{rd}$ minimum for 4000 $\mathring{A}$ line?
engineering physics updated 4.3 years ago by krithikkm200 • 10
0
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1.1k
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Express the following Cartesian coordinates (2 $\sqrt{3}$, 6,-4) to spherical coordinate system
engineering physics updated 4.3 years ago by krithikkm200 • 10
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1.1k
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What is the longest $\lambda $ that can be observed in the $4^{th}$ order for a grating having 6000 lines/cm?
engineering physics updated 4.3 years ago by krithikkm200 • 10
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