Two charges q1 and q2 are placed in vacuum at a distance d and force between them is F. If a medium of relative permittivity 4 is introduced between them, then the new force will be A. F/4 B. F/2 C. 2F D. 4F
Two charges q1 and q2 are placed in vacuum at a distance d and force between them is F. If a medium of relative permittivity 4 is introduced between them, then the new force will be A. F/4 B. F/2 C. 2F D. 4F
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December 2022
The ratio of electric field intensity due to an infinite sheet of charge and 2 oppositely charged parallel plates is : A. 1 : 1 B. 2 : 1 C. 1 : 2 D. 2 : 3
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December 2022
Which of the following is not the effect of cytokinin on floral bud? a. promote bud initiation b. promote lateral bud growth c. break blood dormancy d. promote leaf growth
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December 2022
The protein fibrinogen belongs to : a. Fibrous protein b. Globular protein c. Structural protein d. Intermediate protein
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December 2022
If reduction potential of four divalent elements X,Y,Z and W are -1.46V , -0.36V , 0.51V and -1.24 respectively then: a) X will replace Z from aq.solution b) Y will replace Z from aq.solution c) W will replace Z from aq.solution d) All are correct
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December 2022
which of the following hydrogen halides has the highest percentage of ionic character. HCl HBr HF HI
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December 2022
Which of these solutions will have highest boiling point? 1) 0.20 m glucose 2) 0.10 m Na2SO4 3) 0.25 m sucrose 4) 0.10 m NaCl
Which has the lowest density among these? 1. CH4 2.CO2 3.N2 4.NH3
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December 2022
Equal masses of CH4 and H2 are mixed in a container at 298K.Fraction of total pressure exerted by methane is a) 1/2 b) 1/3 c) 1/9 d) 8/9
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December 2022
The product obtained at anode by the electrolysis of an aqueous solution of H2SO4 using an inert electrode is O2 SO2 H2 S
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December 2022
Polymerase belong to the group: a. Lyases b. Ligases c. Transferases d. Hydrolases
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December 2022
Complement : a. is a non specific defence mechanism b. is involved in inflammatory reaction c. is a series of proteins in the plasma d. All of the above (Answer only if u know the correct option)