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CH3OH → CH3COOH The above reaction proceeds in presence of.. (a) K2Cr2O7 (b)CH2N2 (c)CO2/BF3 (d) None ...
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Two particles are projected from the ground,one vertically upwards and one 60 deg above the horizontal.What will be the separation between them after t seconds? ...
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The figure shows a ray incident at an angle i=π/3 . The ray is refracted and angle of refraction is r. The value of r changes between 0 to π/2when the ratio μ1/μ2 = k is changed. If the plot drawn shows the variation of | ...
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A closed loop of cross sectional area 10-2 m2 which has inductance L= 10 mH and negligible resistance is placed in a time varying magnetic field.The figure shows the variation of B with time for the interval 4 sec.The field i ...
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A closed loop of cross sectional area 10-2 m2 which has inductance L= 10 mH and negligible resistance is placed in a time varying magnetic field.The figure shows the variation of B with time for the interval 4 sec.The field i ...
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In a series LCR circuit the frequency of the source is half of the resonance frequency. Then how can I comment about the nature of the circuit,,,like whether it is capacative or inductive or purely resistive?? ...
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Nuclei of radioactive element A are produced at rate t2 at any time t.The element A has decay constant λ.Let N be the number of nuclei of element A at any time t.At tinme t=t0 , dN/dt is minimum.Then find the number of nucle ...
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A cube of side length a is kept on top of a hemisphere of radius r.For the body to be in stable equilibrium for small displacements what should be the maximum value of a?? ...
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Some operations which can be performed on a capacitor are defined below : A : Connect the capacitor to a battery of emf E B : Disconnect the battery C : Reconnect the battery with polarity reversed D : Insert a dielectric sla ...
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Some operations which can be performed on a capacitor are defined below : A : Connect the capacitor to a battery of emf E B : Disconnect the battery C : Reconnect the battery with polarity reversed D : Insert a dielectric sla ...
