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When a thin convex lens is put in contact with a thin concave lens of the same focal length, the resultant combination has a focal length equal to ...

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hey guyz howz ur paper ................ how wud u rate difficulty in math, phy , chem seperately in a scale of 1 -10?????????????? was the time sufficient ....... also post sum tips for ur juniors .... now that uve exp. JEE,, ...

∫[(9ex+5e-x)/(9ex-e-x)]dx=Ax+B ln(9e2x-1)+C Then which of the following is true ...

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*Image* ...

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A ray is incident at an angle of incidence i on one surface of a prism of small angle A and emerges normally from opposite surface. If the refractive index of the material of prism is μ, the angle incidence of i is nearly eq ...

A heating coil is labeled 100 W, 220 V. The coil is cut into two equal pieces, which are joined in parallel to the same source. The energy now liberated per second is ...

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The sum of the coefficients of the polynomial (1-x-x2)313 ...

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A straight glass tube with its lower end sealed has a length \ell=152\ \mathrm{cm} . The lower half contains one mole of an ideal diatomic gas. The top half contains mercury and the top of the tube is open to atmosphere (atmo ...

*Image* ...

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i have heard from many that we have to study selectively from higher algebra-by hall n knight. plz tell me which chapters we have to read for jee+aieee+bits and which all can be left out ...

1. *Image* AJ=40cm.when R1&R2 are interchanged ,AJ'=30cm.thenAB= a.70cm b.75cm c.100cm d.125cm 2. *Image* the potential at A is 3 times the e.m.f of 1 of the cells.the ratio of the two emfs a.2:1 b.3:1 c.4:1 d.5:1 3. *Image* ...

give your suggestions i think 190 may be...... ...

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green Cr+3 changes 2 yellow CrO4-2 ON BOILIN WIT A alkaline H202 B acidified H2O2 ...

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Current is passed in AgSO4 aqueous solution & 1.6 gm O2 is obtained. the amount of Ag that will be deposited will be- [Ag=108 gm] ...

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