A point charge +q is placed at a distance r from the centre of an uncharged spherical conductor of radius R. Potential at P due to induced charges on the surface of the sphere
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December 2022
One of the products formed when K2Cr2O7 reacts with conc. H2SO4 in cold is 1) Cr2 (SO4)3 2) Cr2O3 3) CrO3 4) CrO4Cl2
The manufacture of fluorine is done by:
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December 2022
ALL SPAMS ARE FLAGGED In a Species - Area relatioship curve Z is the regression coefficient. Which of the following is a wrong statement about the value of Z ? 1) Generally the value of Z lies in the range of 0.1 to 0.2 2) The Z value is higher...
Reduction of benzoic acid with diborane gives
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December 2022
Identify the scientist who did not challenge the theory of spontaneous generation
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December 2022
In presence of which metal ion among the following, amylase is catalytically very active?
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December 2022
A person passes much urine and drinks much water but his blood glucose level is normal. This condition may be the result of: 1) A reduction in insulin secretion from pancreas 2) A reduction in vasopressin release from posterior pituitary. 3) A fall in secretion of glucagon 4) An increase...
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December 2022
What will happen when a 40 watt-220 volt lamp and 100 watt-220 volt lamp are connnected in series across 40 volt supply?
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December 2022
Angiotensin II has effects over 1) Adenohypophysis 2) Adrenal cortex 3) Blood vessels 4) Both 2 and 3
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December 2022
A balloon with mass M is descending down with an acceleration a (a < g). What mass m be detached from it, so that it starts moving up with an acceleration a.
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December 2022
Monochromatic light of wavelength 400 nm and 560 nm are incident simultaneously on double slits apparatus whose slits separation is 0.1 mm and screen distance is 1 m. Distance between areas of total darkness will be
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December 2022
Which of the following compounds does not give a precipitate with excess of NaOH? 1) ZnSO4 2) FeSO4 3) AgNO3 4) HgCl2
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December 2022
If DNA is digested by endonucleases in four sites giving rise to fragments of which two are equal in length, how many bands will be seen after electrophoresis
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December 2022
A particle is moving along a circular path with uniform speed. Through what angle does its angular velocity change when it completes half of the circular path ? 1) 00 2) 450 3) 1800 4) 3600
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December 2022
Find out the incorrect statement about a species susceptible to extinction is 1) Large body size 2) Small population and low reproductive rate 3) Fixed migratory routes 4) Feeding on low trophic levels