[" 10.fross thirm for "],[qquad [" (a) "sqrt((1+cos A)/(1-cos A))=csc A+cot A]]

[" Which of the "],[" following point "],[" represents the image "],[" of the object "0?],[qquad [" (i) "],[" (i) "]]

[" I."A" body is allowed to fall from a "],[" height of "100m" .If the time taken for "],[" the first "50m" is "t_(1)" and for the "],[" remaining "50m" is "^(t_(2))" ."],[" The ratio of "t_(1)" and "t_(2)" is nearly "],[qquad [5:2],[3:1],[3:2]]

[" The Schrodinger wave equation "],[" for hydrogen atom is: "],[qquad [psi_(2s)=(1)/(4sqrt(2 pi))((1)/(a_(0)))^(3/2)(2-(r_(0))/(a_(0)))e^((-r_(0))/(a_(0))),],[" where "a_(0)" is Bohr's radius.If the "],[" radial node is "2s" be at "r_(0)," then the "],[" value of "(r_(0))/(a_(0))" is "]]

[" The distance of spherical nodes "],[" from nucleus for the given orbital "],[" are "],[qquad [psi_(" radial ")=(1)/(9sqrt(2))((Z)/(a_(0)))^(3/2)[(sigma^(2)-4 sigma+3)]exp(-sigma/2],[" where "a_(0)&Z" are the constants and "],[sigma=(2Zr)/(a_(0))]]

[" Silicon is unable to form "p" -bond by "],[" lateral overlap which is reflected by "],[" which of the following: "],[qquad [" (A) ",N(SiH_(3))_(3)" and "N(CH_(3))_(3)" are "],[," pyramidal "],[" (B) ",Me_(2)CCl_(2)" upon hydrolysis "],[" yields "Me_(2)CO" while "],[,Me_(2)SiCl_(2)" yields silicones "],[" (C) "SiO_(2)" is a hard and high "],[," melting solid while "CO_(2)" is a "],[" gas "]]

[" Pulley in the diagram is "],[" massless but there is friction "],[" between pulley and string,then "],[" the acceleration of system is "],[qquad (qquad m)/(mu)(" ( ")/(" н ")]

Express the following expression in the form of a+ib qquad ((3+i sqrt(5))(3-i sqrt(5)))/((sqrt(3)+sqrt(2)i)-(sqrt(3)-i sqrt(2)))

[" 12.A small body of mass 'm' is projected from the surface of a given planet as shown "],[" in the figure.If small body has velocity which is just sufficient to get out from the "],[" gravity of planet then time taken by small body to reach at height of 3R from the "],[" surface of planet is "K sqrt((2R^(3))/(GM))" .Find the value of "K],[qquad (1)/(2)=(1)/(2)]

[" 3,In the shown circuit,when the voltage between "],[qquad [" A and "B" is "16" V the voltage between "C" and "D" is "],[8" V.When the voltage between "C" and "D" is "15" V,"],[" what is the voltage (in "V" ) between "A" and "B" ? "]],[[" A "0," 2 Omega "," 8 Omega "],[" B "," ? "," R "],[" 2 Omega "," (2) "5," o "D],[" (1) "7.5," (4) "4," 8 Omega "]],[" (3) "3," (4) "],[" (3) "3," ."],[" ."]

[" Incorrect statement among "],[" the following is "],[qquad [" The pKa of - COOH group in "],[" an a-amino acid is lower "],[" than the pKa of acetic acid."]],[" Proline is an example of "],[" aromatic heterocyclic ring "],[" containing amino acids "],[" There is two chiral centres "],[" in Leucine "],[" All naturally available amino "],[" acids are essential amino "],[" acids "]