Sample Paper Set II For 11th And 12th

15 Questions | By Jagranjosh | Last updated: Jan 15, 2014 | Total Attempts: 253

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Question No: 1-5 (Physics) Question No: 6-10 (Chemistry) Question No: 11-15 (Mathematics)

Questions and Answers

1.

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 :
- A.
- B.
- C.
  
  +
- D.
2.

A hollow metal sphere is charged such that the potential at its centre is V. The potential on the surface of the sphere is :
- A.
  
  Zero
- B.
  
  V
- C.
  
  More than V
- D.
  
  Less than V
3.

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 :
- A.
- B.
- C.
- D.
4.

The displacement of a particle executing simple harmonic motion varies with time t as The amplitude of oscillation is :
- A.
  
  A
- B.
- C.
- D.
  
  2 a
5.

Find the electric field due to three concentric thin long cylinders of linear charge densities –, +2 and just outside the outer cylinder.
- A.
- B.
- C.
- D.
  
  None of these
6.

Reactivity of carbonyl compound towards NAR is-
- A.
  
  III > I > II
- B.
  
  III > II > I
- C.
  
  I > II > III
- D.
  
  I > III > II
7.

The ratio of total number of bond to the total number of bond in anhydride of
- A.
  
  4
- B.
  
  2
- C.
  
  3
- D.
  
  8
8.

Which of the following will have positively charged particles in dispersed phase?
- A.
  
  sol
- B.
  
  Milk
- C.
  
  Blood
- D.
  
  Gold sol
9.

Which of the following option is incorrect regarding ?
- A.
- B.
  
  P–Cl bond length is less than P–F bond length.
- C.
  
  Cl – – Cl bond angle is less than Cl – – F bond angle.
- D.
  
  Its dipole moment is zero
10.

Aspartame, an artificial sweetener contains 9.52 wt. % nitrogen. There are two nitrogen atoms per molecule. What is the molecular weight of aspartame?
- A.
  
  147
- B.
  
  294
- C.
  
  588
- D.
  
  266
11.

There exists a natural number N which is 50 times its own logarithm to the base 10, then number of digits in N is
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
12.
- A.
  
  1
- B.
  
  –1
- C.
- D.
13.

The values of cos
- A.
  
  0
- B.
- C.
- D.
14.
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
15.

Consider the function f(x) = Statement-1: f '() = 0. Statement-2: f(c) =
- A.
  
  Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement- 1
- B.
  
  Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.
- C.
  
  Statement-1 is true, statement-2 is false.
- D.
  
  Statement-1 is false, statement-2 is true.