Questions with Complete Solutions - Hamro CSIT

The following sample data were collected to determine the relationship between two processing variables and the current gain of a transistor in an integrated circuit.

Diffusion time in hours (x1) Sheet resistance ohm-cm (x2) Current gain (y)

1.5 65 5.2

1.2 140 9.8

0.5 70 7.5

2.7 92 10.8

1.6 123 12.6

0.3 105 9.1

(i) Fit a regression equation and use this equation to estimate the expected current gain when the diffusion time is 1.8 hours and the sheet resistance is 90 ohm –cm.

(ii) Compute the coefficient of multiple determination and interpret its value.

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A proton is accelerated through a potential difference of 200V. It then enters a region which there is a magnetic field B = 0.5 T. The magnetic field is perpendicular to the direction of motion of the proton. Find the force experienced by the proton.

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A small particle of mass 10^-6 g moves along the x axis; its speed is uncertain by 10^-6 m/sec. (a) What is the uncertainty in the x coordinate of the particle? (b) Repeat the calculation for an electron assuming that the uncertainty in its velocity is also 10^-6 m/sec.

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Write short notes on:

a. Lighting in OpenGL

b. Orthographic projection

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Discuss the use of virtual reality in education. How does VR enhance student engagement and learning outcomes?

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What is constant intensity shading? Compare Phong shading and fast Phong shading.

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What is spatial-partitioning representation? Explain how it differs from boundary representation in terms of geometry storage and processing.

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For control points P0(0,0), P1(1,2), P2(3,3), and P3(4,0), calculate the Bezier curve point at u = 0.5. Also plot the rough curve shape.

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Explain the 3D viewing pipeline in computer graphics. Explain about how a 3D world coordinate system is transformed to a 2D screen.

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How is the transformation matrix computed when switching from one coordinate system to another? Illustrate with an example

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