Sample Paper Set II For 11th And 12th

Find the electric field due to three concentric thin long cylinders of linear charge densities –, +2 and just outside the outer cylinder.

• None of these

Which of the following option is incorrect regarding ?

• P–Cl bond length is less than P–F bond length.

• Cl – – Cl bond angle is less than Cl – – F bond angle.

• Its dipole moment is zero

Aspartame, an artificial sweetener contains 9.52 wt. % nitrogen. There are two nitrogen atoms per molecule. What is the molecular weight of aspartame?

• 147

• 294

• 588

• 266

An infinite number of charges, equal to q, are placed along the x-axis at x = 1, x = 2, x = 4, x = 8 .... and so on.The electric potential at the point x = 0 due to this set of charges is :

Reactivity of carbonyl compound towards NAR is-

• III > I > II

• III > II > I

• I > II > III

• I > III > II

Which of the following will have positively charged particles in dispersed phase?

•  sol

• Milk

• Blood

• Gold sol

• 1

• –1

• 1

• 2

• 3

• 4

The ratio of total number of  bond to the total number of  bond in anhydride of

• 4

• 2

• 3

• 8

There exists a natural number N which is 50 times its own logarithm to the base 10, then number of digits in N is

• 1

• 2

• 3

• 4

A hollow metal sphere is charged such that the potential at its centre is V. The potential on the surface of the sphere is :

• Zero

• V

• More than V

• Less than V

A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium if q is equal to :

• + 

The values of cos

• 0

Consider the function f(x) = Statement-1: f '() = 0. Statement-2: f(c) = 

• Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement- 1

• Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.

• Statement-1 is true, statement-2 is false.

• Statement-1 is false, statement-2 is true.