List of practice Questions

Potential difference is given as V(x) = -x2y Volt. Find electric field at a point (1, 2) ?
A soap bubble, having radius of \(1 mm\), is blown from a detergent solution having a surface tension of \(2.5 \times 10^{-2} \)\(\frac Nm\). The pressure inside the bubble equals at a point \(Z_0\) below the free surface of water in a container. Taking \(g=10 m/s^2,\) density of water-\(103 kg/m^3\), the value of \(Z_0\) is: 
Find the height of the liquid in the capillary tube if surface tension of liquid is S, radius of capillary tube is r and acceleration due to gravity is g :
If \((\displaystyle\int_0^axdx)\le(a+4)\), then
A satellite revolve in radius R has a time period of revolutionT. Find time period of a satellite if orbital radius is 9R?
If total energy of an earth's satellite is zero, it means that
A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance
Two identical spherical balls of mass $M$ and radius $R$ each are stuck on two ends of a rod of length $2R$ and mass $M$ (see figure). The moment of inertia of the system about the axis passing perpendicularly through the centre of the rod is :
A ring of mass m and radius r is melted and then moulded into a sphere. The moment of inertia of the spheres will be
Two disc having mass ratio \(\frac{1}{2}\) and diameter ratio \(\frac{2}{1}\) then find the ratio of moment of inertia
A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth?
The correct decreasing order for acid strength is :
The correct order of hydration enthalpies of alkali metal ions is -
A solution containing $62\, g$ ethylene glycol in $250 \,g$ water is cooled to $-10^{\circ}C$. If $K_f$ for water is $1.86\, K\, kg \,mol^{-1}$, the amount of water (in g) separated as ice is :
The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :
The total volume of soaps sold is 680 lakhs units. The volume of Lux sold is 136 lakh units. If the
percentage of Lifebuoy sold is 30\(\%\), Camay 10\(\%\), Liril 15\(\%\) and Mysore Sandal 10\(\%\), answer the following
questions.

What is the market share of others in percentage points ?
How much time does Mr.Surya take to cover a distance of 500 m if he runs at a speed of 25 km/hr?
In a triangle ABC, AD is the bisector of angle A. If AC =4.2 cm, DC = 6 cm, BC =10 cm, find AB.
 In analogy, you are required to guess the relation between the two given words and fill in the blank after finding the similar relationship by choosing any word from the options given below:Hen :Chick :: Frog : .......
 In a certain code RIPPLE is written as 613382 and LIFE is written as 8192. How is PILLER written in that code?
Students in a commerce class took a test. The average score of men is 70 and of women is 83. The class average is 76. What is the ratio of men to women in the class?
The speed of a boat in still water is 5 km/hr. If it takes thrice as much time in going 20 km upstream as in going the same distance downstream, find the speed of the stream.
Find the odd one out of given combinations :
Find the missing number in the series below :
24, 28, 30, 34, .....
 In the following question below, 3 statements I, II and III are given. You are required to find out which of the given statement(s) is/are suffi cient to answer the question.How old was Deepa on October 2018 ?
I. Deepa is 6 yrs older than her sister Prabha
II. Prabha is 29 yrs younger than her mother
III. Deepa's mother celebrated her birthday on July 2018