-
*Image* ...
-
1..if f:R→R be a differential finction such that that f(2-x)=f(x) and f(5-x)=f(5+x) then 1.f'(-3)=0 2..f'(9)=0 . 3.if \int_{3}^{5}{f(x)dx=k},then \int_{11}^{15}{f(x) dx} wil l be k ...
-
Prove that (\sin \gamma + a \cos \gamma)(\sin \gamma + b \cos \gamma) \le 1 + \left( \frac{a+b}{2} \right)^2 for reals a,b ...
-
electric potential due to a dipole is cylindrical symmetric.Why? ...
-
*Image* ...
-
Q1 what happens when stannous sulfide treated with yellow ammonium sulfide ?? Q2 How can Co and NI be separated Q3 How can Cu2+ and Cd2+ be separated ?? ...
-
*Image* ...
-
Q1 *Image* Q2/3 *Image* ...
-
A non-zero vector a i s parallel to the line of intersection of plane P1 determined by i+j , i - 2j and plane P2 determined by vector 2i + j ,3i + 2k , then angle between a and vector i - 2j +2k is (A)Î /4 (B) Î /2 (C) Î /3 ( ...
-
Q1. A/R Stmnt 1: If two long parallel wires, hanging freely are connected to a battery in series, they come closer to each other Stmnt 2: Force of attraction acts between the two wires carrying current ...
-
*Image* ...
-
1...force on a current carrying current conductor is given by F=(i∫dl )X B WHERE FOR A CONDUCTOR ∫dl REPRESENTS VECTOR SUM OF ALL LENGTH ELEMENTS FROM INITIAL [POINT TO FINAL POINT ...
-
In the potentiometer circuit shown the balance point (null point) is at "X" . State with reason where balance point will be shifted when a) resistance "R" is increased,keeping all other parameters constant b) resistance "S" i ...
-
Are resonating structures in equilbrium?????????????If yes whether it is static or dynamic?????????? ...
-
RCM (50) calculate the heat of the foll reaction: CH3COCH3 + 2O2 → CH3COOH + CO2 + H2O Bond energies : C-H = 414.49 C-C = 347.92 C=O = 724.32 O=O = 494.04 O-H = 462.64 C-O = 967.13 Resonance energy : -COOH = 117.23 CO2 = 13 ...
-
1.. equivalent wt. of HCl when it is treated with with K2Cr2O7 a.36.5 b.>36.5 c.<36.5 d.unpredictable ...
-
area of the region bounded by the curve *Image* is A) 3 sq . unit B) 4 sq . unit C) 1 sq . unit D) 2 sq . unit ...
-
Prove (1 - cos A) /(sin A) tan(A/2) ...
-
In a cubic closed packed structure of mixed oxides,the lattice is made pup of oxide ions,20%of tetrahedral voids are occupied by divalent x+2 ions an 50% of the octahedral voids are occupied by trivalent Y+3 ions. The formula ...
-
1. *Image* Qd/αξA FIND THE VALUE OF ALPHA(α) 2. *Image* ...
-
The normal at a point P on the ellipse x2 + 4y2 = 16 meets the x-axis at Q.If M is the mid point of the line segment PQ, then the locus of M intersects the latus rectum of the given ellipse at the points A) \left(\pm \frac{3\ ...
-
*Image* ...
-
Its high time now [3] (Some NCERT + HOTS Qn(s)) BIOMOLECULES 1)Where does, the water present in the egg, go after boiling the egg? 2) Name a water soluble vitamin which is a powerful antioxidant. 3) Fructose contains a keto g ...
-
A:though light of a single frequncy (monochromatic) is incident on a metal,the energies of emmited photo elctrons may be diff R:The energy of electrons emmited from inside metal surface is redistributed in collisons with othe ...
-
Following are equations of four waves : *Image* Which of the following statements is/are correct ? (A) On superposition of waves (i) and (iii), a travelling wave having amplitude a 2 will be formed (B) Superposition of waves ...
-
*Image* ...
-
*Image* ...
-
*Image* ...
-
*Image* ...
-
what will be the result when simple H+ /H2O will be added???? see the options from the above given list................. ...