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How come? how did he get into IIT for he's too young for it and not even eligible? I think he might not have completed his school too.Does he visit college everyday?Wow, I have so many questions in my mind (& still more to ask)
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We cannot call it a general formula since it doesn't follow the same pattern for cosine function. See the last question you have typed. And every question cannot be a formula .Do you think you have to learn every question in the form of a formula? (then I would be lost if I learn 25 questions of the ex you've mentioned )
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Use Gauss' theorem (this I know for sure) I don't know integration otherwise I would have solved it further.
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Everything in chemistry is hypothetical
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No, you can't use that formula or I should say there is no such formula. The formula is (sin a+ sin b)(sin a - sin b) for (sin^2 a - sin^2 b) ----{the basic formula used is (a^2-b^2)=(a+b)(a-b) } Similarly for cos, you can use it.
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Because the angle between the 2 refracting surfaces is 0 (as the 2 surfaces are parallel to each other)
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Ans is infinite images. There is no such formula to find the number of images in such a case. Its a fact that when an object is placed between 2 parallel plane mirrors, infinite no. of images is formed.
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Apparent depth = real depth = 7cm when viewed normally (no refraction and no reflection)
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Wind is air blowing with a large velocity from a region of higher pressure to a region of lower pressure.
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CP-CV=R (gas constant) and Cp/CV=1+2/f (f=degree of freedom)
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@ above 3 * 5 * 8 * 7 = 840as there are 3 ways to fill first digit (i.e. 5,6,7)5 ways to fill second digit (i.e. 3,4,5,6,7)8 ways to fill third digit (i.e 0 to 7)7 ways to fill last digit (i.e.1 to 7 this does not include 0 as the first number will be 5301).
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yes, it is truefor example-Put your hand on a sheet of paper on the table, and move your hand along the table:
the sheet of paper will move together with your hand.
forces exerted on the paper-
vertical forces: gravity and the normal forces both from your hand and the table will cancel.
Horizontal forces are: the static friction arising from the interaction between your hand and the paper, and the force of kinetic friction coming from the interaction between the table and the sheet.When the sheet (together with your hand) moves with constant velocity the forces of static and kinetic friction are of equal magnitude and as the force of kinetic friction is nonzero, so is the force of static friction.The force of static friction between your hand and the sheet points forward, in the direction of motion. The force of kinetic friction between table and sheet points backwards.
and so the force of static friction exerted on the sheet of paper does work on the sheet. It is nonzero force, parallel to the displacement.
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Power= work done/time P=W/t But W=F*S (F= force, S= displacement) P=F*S/t F=P*t/S P is constant therefore Fis proportional to t/S
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y= tensile stress / longitudinal strain
k= hydraulic stress / volumetric strainwhere y= young's modulus and k= bulk's modulus
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0/1=0 and 1/0= infinityanything/0= infinity and 0/anything=0
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Ans- zerotan(x)=xlet y=tan(x)=xy=tan(x) & y=xnow plot graphs for the two equations and notice their intersecting points, from here you'll find smallest +ve value and the smallest +ve value comes out to be 0 (as the graphs meet at origin).
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Vriti Edustore
