All questions
- Draw the schematic diagram of Scanning Electron Microscope SEM is a type of electron microscope that uses electron beam which is focused on the specimen and by detecting the signals from the interact... 1
- What is population inversion state? Explain its significance in the operation of LASER 1.Normally atoms have the tendency to return to ground state releasing the absorbed energy. Hence, the population of atoms in ground state i... 1
- Compute the maximum radius allowed for a fiber having core refractive index 1.5 and 1.48. Compute the maximum radius allowed for a fiber having core refractive index 1.5 and 1.48. the fiber is to support only one mode at a wavelen... 2
- What is a grating? Define grating element? A diffraction grating is a plane glass plate with a large number of equidistant, parallel, very fine slits (ruled lines); the grating elemen... 1
- Discuss the phenomenon of Fraunhofer’s diffraction at a single slit FRAUNHOFER DIFFRACTION AT SINGLE SLIT Let us first consider a parallel beam of light incident normally on a slit AB of width ‘a’ which is of... 1
- With neat energy level diagram describe the construction and working of a He-Ne Laser. It consists of a long discharge tube of length 50 cm and diameter 1 cm. The tube is filled with a mixture of He and Ne in the ratio 10:1. El... 1
- What are different techniques to synthesize nanomaterials? Answer :: The different techniques to synthesis nanomaterial are : 1.Ball milling 2.Sputtering 3.Vapour deposition 4.Sol gel technique 5.LAS... 1
- State the advantages of optical fiber cables on conventional electrical cables. Advantages of optical fiber cables on conventional electrical cables. . Large Potential bandwidth: As the optical carrier frequency is in th... 1
- Find the divergence and curl of a vector Find the divergence and curl of a vector 1
- Derive the expression of numerical aperture for a step index fiber. Derive the expression of numerical aperture for a step index fiber. A light ray enters an optical fiber from air. The fiber has core refract... 2
- Light is incident normally on a grating 0.25 cm wide with 1250 lines. Data : Number of lines / cm (N)= 5000 m=1 λ1=5895 Å λ2=5901 Å Formula : (a+b)sinθ=Nλ mN=λ/dλ Calculations : —1 —-2 —3 Number of lines / cm r... 2
- Explain top down and bottom up approaches to prepare nanomaterials. Top-down and bottom-up approaches are two common strategies used in the preparation of nanomaterials, each with its own advantages and limit... 1
- Explain the construction and reconstruction of hologram. Holography technique to obtain 3D image of an object: 1. Holography is the science and practice of making holograms. Holography is actually... 1
- A square prism with side of base 40 mm and axis height 60 mm is resting on HP Given Data Side of prism = 40 mm Axis length = 60 mm Resting on one of its corner = HP Axis inclination with HP = 30° 1
- Figure shows 2 views of casting , Draw an isometric view with suitable origin Figure shows 2 views of casting , Draw an isometric view with suitable origin 1
- Trick for Visible (Dark) and Hidden (Dashed) Lines in Projection of Solids Many times students get confused which line to be made dark (visible) and which line to be made dashed (hidden). Video courtesy:: Youtube Fo... 1
- A line AB, 70mm long, has its end A 15mm above HP and 20mm in front of VP. Given Data:- TL = a’b1’ = ab2 = 70 mm a’ (↑) = 10 mm a (→) = 20 mm θ = 30° Φ= 45° 1
- Given data = { 2, 3, 4, 5, 6, 7 ; 1, 5, 3, 6, 7, 8 }.Compute the principal component Solution : data = { 2, 3, 4, 5, 6, 7 ; 1, 5, 3, 6, 7, 8 }.Compute the principal component using PCA Algorithm. 2
- What is the curse of dimensionality? What are the Feature Handling the high-dimensional data is very difficult in practice, commonly known as the curse of dimensionality. If the dimensionality of th... 2
- Draw a block diagram of the Error Back Propagation Algorithm The Error Back Propagation Algorithm, commonly referred to as Backpropagation, is a fundamental algorithm used for training artificial neura... 1
- Draw Delta Learning Rule (LMS-Widrow Hoff) model and explain it with a training process flowchart. The Delta Learning Rule, also known as the LMS (Least Mean Squares) algorithm or the Widrow-Hoff rule, is a method for adjusting the weights... 1
- Explain the Perceptron Neural Network A perceptron is one of the earliest and most basic types of artificial neural networks. It was introduced by Frank Rosenblatt in 1957 and is... 1
- Design a Hebb net to implement OR function (consider bipolar inputs and targets) Hebb Net to Implement OR Function Introduction: A Hebb net is a type of artificial neural network that can be used to implement simple logic... 2
- All Question Papers of Mumbai University Are you gearing up for your upcoming exams and in need of some extra practice? Look no further! We’re excited to share that Doubtly has just... 1