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shudn't it be 20 %? *Image* thankx ...
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find the min. velocity with which an object must be projected horizontally so that it doesen't returns back to the surface acc to this link{ques c]}, ans shud be root [gr] http://www.targetiit.com/iit-jee-forum/posts/interest ...
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optically activ alcohol: 3 methyl 2 penten-2-ol 2 ethyl 3 buten-1-ol both are opticly activ... plese confrm ...
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plese help *Image* ...
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in maths matrix ques, pls tell whats d mistake in this *Image* ...
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PLS HELP me in dis q, *Image* ...
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i'm confused, pl help 1]q on left of 1 2] pd b/w 3,4 *Image* ...
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st1: hno3 is strongr acid than hno2.' st2: in hno3, there are 2 nitrogen to oxgen bonds, but in hno2,there's only 1. in ans--st 2 is given correct.... pls confrm it shud be incorrect. thanx ...
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*Image* value of [flux]*[epsilon] through curved surface=?.. i'm getting 56/65 .. pls confrm... ...
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please help,, dis q was sent to me by a friend. i'm confused here--- *Image* thanks ans- 3>1~2>4 ...
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shudn't d ans be 2 ? *Image* please help ...
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q: no of paired e- in [Ni[CN]4]2- shud i mark 8 or 28[including d ones paired pehle se] ...
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*Image* ...
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please help--solubility of amines C6H5NH2, EtNH2, [Et]2NH soure-cbse paper 2011 acc to me, it shud be 1<3<2 not sure though,,please help ...
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is this true/false 'degree of diff eqn represents no. of family of curves' i think its false pl confirm this ...
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q: Sodium light has 2 wavelengths; lambda1=589nm and lambda2=589.6nm.As the path difference inc, when is the visibility of the fringes maximum?? Ans- 0.29mm.. if i find a position where bright fringes of both will coincide ot ...
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please help asap more acidic-- i]4 nitro benzoic acid,or ii] 3,5 dinitro benzoic acid? i need d reason ans ii>1 thanks ...
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with d4 configuration,Cr(2+) acts as reducing agent but Mn3+ acts as oxdisng agent.why? thanks ...
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please help *Image* ...
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Q.How would the diffraction pattern of a single slit be affected when: the width of the slit is decreased? ans: the diffraction pattern becomes narrower shudn't it become wider?[lamda/a formula..] [my friend sent me this ques ...
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ignore ...
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in d ques "charge q is located at distance l/2 from the center of square above its center. Determine electric flux through the square ." i know d formal way i.e (cmplete the square into a cube and proceed) but whats wrong i n ...
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pl tell hw 2 do Q .Let n be a positive integer and f(n) = 1! + 2! + 3! +........n! and R(x) and Q(x) be polynomials in x such that f(n+2)= R(n)f(n+1) + Q(n)f(n) for all n≥1 Now let P(x) = - Q(x)/R(x) (for all x ≥ 1) denot ...
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sin(cos(a))=a and cos(sin(b))=b Then: a) b>a b) b<a c) b=a d) none no idea how to do..pl help ans-- a thnx ...
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which is more activated? ANILINE OR PHENOL.? my friend asked this from me. he'll tell answer tomorrow...... thanks ...
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find the density and please also explain in brief (i'm confussed how to take the buoyant force....its direction) thanks *Image* ...
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wud the answer be 6 hrs ? pls confirm *Image* ...
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any logic behind the result given in the soln *Image* thanks ...
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shudn't it obviously be c? *Image* ...
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i didn't really understand the question. please help. the ans. is given a my doubt agar a) ans hai,,(going by same logic ) toh b) mein kya kharabi hai?? *Image* ...
