[" 18.Na of ursnium "235" nuclei required to undergo "],[" fission to give "9times10^(13)" joule of energy is "],[[1)2.8125times10^(3),2)28.125times10^(4)],[3)281.25times10^(4),428215times10^(24)],[" 10.The eqergy supplied by a power plant is "40]]

No. of uranium 235 nuclei required to undergo fission to give 9xx10^(13) joule of energy is

Simplify: 10^(-1)times10^(2)times10^(-3)times10^(4)times10^(-5)times10^(6)

Magnetic susceptibility of magnesium at 300K of temperature is 1.2times10^(-5) ,the magnetic susceptibility of magnesium at 30 K of temperature will be 1.2times10^(-3) 1.2times10^(-4) 1.2times10^(-5) 1.2times10^(4)

(1(1)/(13)times2(3)/(5))-:(7(1)/(2)times3(1)/(10))-:(28)/(279)

6. ^(*) The current in a metal wire of cross-sectional area 10^(-6)m^(2) is 1.6A .If the free electron density of the metal is 8times 10^(28)m^(-3) then the drift speed of electrons is (A) 1.25times10^(-3)ms^(-1) (B) 2times10^(-3)ms^(-1) (C) 1.25times10^(-4)ms^(-1) (D) 2times10^(-4)ms^(-1)

The correct expanded form of "9.06" is (a) (9times10)+(6times(1)/(10)) , (b) (9times1)+(6times(1)/(10)) (c) (9times1)+(6times(1)/(100)) , (d) (9times10)+(6times(1)/(100))

6. ^(*) The current in a metal wire of cross-sectional area 10^(-6)m^(2) is 1.6A .If the free electron density of the metal is 8times x^(2) x 10^(28)m^(-3) then the drift speed of electrons is (A) 1.25times10^(-3)ms^(-1) (B) 2times10^(-3)ms^(-1) (C) 1.25times10^(-4)ms^(-1) (D) 2times10^(-4)ms^(-1)

K_(sp) of the salt AB_(2) at 298 K is 4 times 10^(-11)M . A precipitate of AB_(2) is formed when equal volumes of which of the following solutions of A^(2+) and B^(-) are mixed? A) 2 times 10^(-4)M" "A^(2+) and 2 times 10^(-4)M" "B^(-)" B) 2 times 10^(-5)M" "A^(2+) and 2 times 10^(-3)M" "B^(-) C) 2 times 10^(-2)M" "A^(2+) and 2 times 10^(-3)M" "B^(-)

The rate constant of a reactant is 1.5 xx 10^(-3) at 25^(@)C and 2.1 xx 10^(-2) at 60^(@)C . The activation energy is