Ankur Rao Asked a Question
February 10, 2021 8:59 pmpts 30 pts
7, Let Cdenote the boundary of the semi-circular disk D{(, y)eR: x+s1,y<0} and let A ox, y)= +y for (x, y)ED. If h is the outward unit normal to C, then the integral (Vp).idS , evaluated counter-clockwise over C, is equal to (a) 0 (b) T-2 (c)Tt (d) t + 2 JAM MA-2007]
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  • Alka gupta thankyou
    no ans match.....it is marks to all qus....see
    • cropped3632365768896479049.jpg
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  • Ankur Rao
    answer is b
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  • Anonymous User
    See Solution
    • cropped7886097925406521544.jpg
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  • Anonymous User
    Option A is correct
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  • Anonymous User
    disc is in xy plane so area vector is in z direction... that's why n cap is z.. and the dot product of del phi with n cap gives zero.
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