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Q1: *Image* a)-1 b)loge1 c)1 d)none q2: *Image* a) 1/2 sin3a b) 1/2 cosec2a c)sin3a d)cosec3a q3: *Image* a)1 b)-1 c)0 d)none q4:if 0<x<y then *Image* a)e b)x c)y d)none q5: *Image* a)1 b) sinx/x c) x/sinx d)none ...
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Q1: *Image* a)-1 b)loge1 c)1 d)none q2: *Image* a) 1/2 sin3a b) 1/2 cosec2a c)sin3a d)cosec3a q3: *Image* a)1 b)-1 c)0 d)none q4:if 0<x<y then *Image* a)e b)x c)y d)none q5: *Image* a)1 b) sinx/x c) x/sinx d)none ...
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tan-1(tan 7) = a:7-2Î b:2Î -7 c:7 Please give the reason behind the answer. ...
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1)If sin-1x + tan -1x = , then 2x2 + 1= 2)2 sin -1x = cos-1 (1 -2x2) is true for a. -1<=x<=1 b.-1<=x<=0 c.0<=x<=1 d.None of these 3)7)If sin-1x+sin-1y=2pi/3, cos-1x–cos-1y=pi/3, the number of ordered pairs ...
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Among the following structures, which is not a permissible resonance? *Image* *Image* *Image* 4.None of these ...
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Among the following structures, which is not a permissible resonance? *Image* *Image* *Image* 4.None of these ...
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lim [(1+x)^(1/x) -e]/x x→0 ...
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lim [(1+x)^(1/x) -e]/x x→0 ...
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the angles which a vector A = i+j+ 2 k makes with X Y Z axes respectively are a) 60° 60° 60° b) 45° 45° 45° c) 60° 60° 45° d) 45° 45° 60° ...
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which of the following sets of concurrent forces maybe in equilibrium a)3N,5N,9N b)3N,5N,1N c)3N,5N,15N d)3N,5N,6N ...
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A fireman wants to slide down a rope. The breaking load for the rope is 3/4 of the weight of the fireman. With what minimum acceleration should he slide down a)g b)3g/4 c) g/4 d)g/8 ...
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A body is projected with a speed u in such a direction that the maximum height obtained is equal to its horizontal range. The horizontal range is a)8u2/17g b)5u2/17g c)6u2/13g d)u2/2g ...
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which electronic level would allow the hydrogen atom to absorb a photon but not emit one ? a)3s b)2p c)2s d)1s ...
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which electronic level would allow the hydrogen atom to absorb a photon but not emit one ? a)3s b)2p c)2s d)1s ...
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In PCl5 the bond angles in equatorial and axial planes are a)60° and 120° b)120° and 90° c)120° and 60° d)120° and 180° what does "equatorial and axial planes" mean here ? ...
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An electron, a proton and an alpha particle have kinetic energies of 16E,4E and E respectively. What is the qualitative order of their de Broglie wavelengths ? a)Ie>Ip=Ia b)Ip=Ia>Ie c)Ip>Ie>Ia d)Ia<Ie>>Ip ...
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An electron, a proton and an alpha particle have kinetic energies of 16E,4E and E respectively. What is the qualitative order of their de Broglie wavelengths ? a)Ie>Ip=Ia b)Ip=Ia>Ie c)Ip>Ie>Ia d)Ia<Ie>>Ip ...
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The value of the magnetic moment of a particular ion is 2.83 BM. The ion is a)Fe2+ b)Ni2+ c)Mn2+ d)Co3+ ...
