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![[Post New]](/templates/default/images/icon_minipost_new.gif) 18 Apr 2008 20:33:03 IST
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Mirages are observed on some days when
1)Density of air increases with height
2)density of air decreases with height
3)earth acts like a mirror
4)air is dense uniformly
ans given is 1 but i think it shud be 2 plzz correct me
a constant torque acting on a unifrom circular wheel changes its angular momentum from J to 4J in 4 seconds the mag of torque is
1)3/4J
2)4J
3)J
4)12J
ans given is 3 but im gettin 1 am i missing somethin????
an ellipse slides between two straight lines at right angles to each other the locus of its centre is part of
1)auxilliary circle
2)director circle
3)another ellipse
4)parabola
ans given is 3 but i wrote it as 2 wat is wrong???
2 salutes per que assured
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FAILURE IS NOT FALLING IN LIFE BUT NOT RISING AGAIN AFTER FALLING!!!!!!
I LIKE WAVES NOT BECAUSE THEY RISE AND FALL..
BUT BECAUSE EVERYTIME THEY FALL THEY RISE AGAIN!!!!!!!
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Moderation Team
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