## 1. The increase in pressure required to decrease the 200 L volume of a liquid by 0.004% (in kPa) is (Bulk modulus of the liquid ==2100 MPa)

Maharashtra CET 2006 Mechanical Properties Of Solids

## 2. The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun?

AIPMT 1997 Gravitation

## 3. The diameter of a flywheel is increased by 1%. Increase in its moment of inertia about the central axis is

JIPMER 2015 System Of Particles And Rotational Motion

## 4. There are 26 tuning forks arranged in the decreasing order of their frequencies. Each tuning fork gives 3 beats with the next. The first one is octave of the last. What is the frequency of 18th tuning fork?

BHU 2005 Electromagnetic Waves

## 5. A quarter horse power motor runs at a speed of 600 rpm. Assuming 40% efficiency, the work done by the motor in one rotation will be (in erg)

Manipal 2009 Work, Energy And Power

## 6. A body of mass 4 kg is accelerated upon by a constant force, travels a distance of 5 m in the first second and a distance of 2 m in the third second. The force acting on the body is

KCET 2008 Laws Of Motion

## 7. The speed of sound through oxygen at T K is v m$s^{-1}$. As the temperature becomes 2T and oxygen gas dissociates into atomic oxygen, the speed of sound

Manipal 2003 Electromagnetic Waves

## 8. If voltage across a bulb rated 220 volt-100 watt drops by $2.5\%$ of its rated value, the percentage of the rated value by which the power would decrease is

AIPMT 2012 Current Electricity

## 9. A cannon of mass I 000 kg, located at the base of an inclined plane fires a shelI of mass 100 kg in a horizontal direction with a velocity 180 $kmh^{-1}$. The angle of inclination of the inclined plane with the horizontal is 45$^{\circ}$. The coefficient of friction between the cannon and the inclined plane is 0.5. The height, in metre, to which the cannon ascends the inclined plane as a result of the recoiI is (g = 10 $ms^{-1})$

EAMCET 2004 Laws Of Motion

## 10. Two charges $q_1$ and $q_2$ are placed 30 cm apart, as shown in the figure. A third charge $q_3$ is moved along the arc of a circle of radius 40cm from C to D. The change in the potential energy of the system is $\frac{q_3}{ 4 \pi \varepsilon_0}$ k. where k is

AIPMT 2005 Electrostatic Potential And Capacitance

## 1. How many litres of water must be added to 1 L of an aqueous solution of HCL with a pH of 1to create an aqueous solution with pH of 2?

IIT JEE 2013 Equilibrium

## 2. Which of the following solutions will have pH close to 1.0 ?

IIT JEE 1992 Equilibrium

## 3. A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives

IIT JEE 2001 Aldehydes Ketones and Carboxylic Acids

## 4. Acetone is mixed with bleaching powder to give

AFMC 2004 Aldehydes Ketones and Carboxylic Acids

## 5. X is heated with soda lime and gives ethane. X is

AFMC 2005 Aldehydes Ketones and Carboxylic Acids

## 6. If a gas expands at constant temperature, it indicates that

AIPMT 2008 States of Matter

## 7. Dalda is prepared from oils by

KCET 2008 Surface Chemistry

## 8. Moderate electrical conductivity is shown by

IIT JEE 1982 The p-Block Elements

## 9. The radii of $Na^+$ and $Cl^{-1}$ ions are 95 pm and 181 pm respectively. The edge length of NaCl unit cell is

KCET 2006 The Solid State

## 10. An acidic buffer solution can be prepared by mixing the solution of

IIT JEE 1981 Equilibrium

AIEEE 2002 Sets

## 2. Let $\omega \ne 1$ be a cube root of unity and S be the set of all non-singular matrices of the form $\begin {bmatrix} 1 & a & b \\ \omega & 1 & c \\ \omega^2 & \omega & 1 \end {bmatrix}$ where each of a , b and c is either $\omega \ or \ omega^2$ Then, the number of distinct matrices in the set S is

IIT JEE 2011 Determinants

## 3. For $r = 0, 1, ... , 10,$ if $A_r,B_r$ and $C_r$ denote respectively the coefficient of $x^r$ in the expansions of $(1 + x)^{10}, (1 + x)^{20}$ and $(1 + x)^{30}$. Then, $\displaystyle \sum A_r(B_{10}B_r-C_{10}A_r)$ is equal to

IIT JEE 2010 Binomial Theorem

## 4. A ray of light along $x+\sqrt 3 \, y=\sqrt 3$ gets reflected upon reaching X-axis, the equation of the reflected ray is

COMEDK 2013 Straight Lines

## 5. A ray of light along $x+\sqrt 3 \, y=\sqrt 3$ gets reflected upon reaching X-axis, the equation of the reflected ray is

COMEDK 2013 Straight Lines

## 7. The centre of the circle passing through the point (0, 1)and touching the curve $y = x^2 at (2,4)$ is

IIT JEE 1983 Conic Sections

## 8. If $\int\limits \frac{\cos \, 8x + 1}{ \tan \, 2x - \cot \, 2x} dx = a \, \cos \, 8x + c ,$ then $a$ =

COMEDK 2015 Integrals

## 9. Perpendicular are drawn from points on the line $\frac{x+2}{2}=\frac{y+1}{-1}= \frac{z}{3}$ to the plane $x+ y + z = 3$. The feet of perpendiculars lie on the line

JEE Advanced 2013 Introduction to Three Dimensional Geometry

## 10. Let AB be a chord of the circle $x^2 + y^2 = r^2$ subtending a right angle at the centre. Then, the locus of the centroid of the $\Delta PAB$ as P moves on the circle, is

IIT JEE 2001 Conic Sections

## 1. Fluoride pollution mainly affects

AIPMT 2003 Environmental Issues

## 2. Two bacteria found to be very useful in genetic engineering experiments are

AIPMT 1998 Biotechnology : Principles and Processes

## 3. Edible part of banana

AIPMT 2001 Morphology of Flowering Plants

## 4. Meiosis in Dryopteris takes place during

JIPMER 2010 Plant Kingdom

## 5. In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to

AIPMT 1991 Cell Cycle and Cell Division

## 6. The edible part of the fruit of apple is

KCET 2013 Morphology of Flowering Plants

## 7. In spermatogenesis, reduction division of chromosomes occurs during conversion of

WBJEE 2012 Human Reproduction

## 8. Triticale is obtained by crossing wheat with

AIPMT 2001 Strategies for Enhancement in Food Production

## 9. Venous heart is found in

Odisha JEE 2012 Animal Kingdom

## 10. Which one holds corona radiata ?

Maharashtra CET 2007 Human Reproduction