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A pump draws water from a tank and issues it from the end of a horse which is 2.5m vertically above the level from which the water is drawn. The cross sectional area of the hose is 10cm^{2} , and the water leaves the end of t ...
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A force vec{F}=2hat{i}-3hat{j}+4hat{k} (N) acts on a particle which undergoes a displacement vec{r}=7hat{i}+3hat{j}-2hat{k} (M). Calculate the work done by the force a) 37 J b) -9 J c) 49 J d) 14 J ...
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Which of the following element have highest oxidizing strength – a) F b) Cl c) Br d) I ...
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The incorrect statement among the following is a) The first ionization potential of Al is less than the first ionization potential of Mg b) The second ionization potential of Mg is grater than the second ionization potential ...
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Which one of the following is the smallest in size? a) [{N^{3 - }}] b) {O^{2 - }} c) {F^ - } d) N{a^ + } ...
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The ratio of an angular speed of hours hand and seconds hand of a clock is a) 1:1 b) 1:60 c) 1:720 d) 3600:1 ...
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The value of sqrt {(log _{0.5}^24)} is a) –2 b) sqrt {( - 4)} c) 2 d) None of these ...
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The unit of specific heat capacity is a) J/kg b) J/Kg/℃ c) Both of them d) None of them ...
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Which of the following is most acidic? ...
