List of practice Questions

A man of mass 60 kg is standing on a spring balance inside a lift. lf the lift falls freely downwards, then the reading of the spring balance will be

Evaluate\(\begin{vmatrix} 1 & x & y\\ 1 & x+y & y\\1&x&x+y \end{vmatrix}\)

Investigate: 
In the given figure, the angle measure 30º. Look at the same figure through a magnifying glass. Does the angle become larger? Does the size of the angle change?
magnifying glass
What forces conspire to keep the workers in the bangle industry of Firozabad in poverty?
What caused the lack of communication between the Englishman and the people at Gemini Studios?
The resultant of two vectors of magnitudes \(2A\) and \(\sqrt2A\) acting at an angle θ is \(\sqrt10 A\). The correct value of \(θ\) is?
What is the period of the function sin 4x + tan 2x?
Show that the function given by f(x)=\(\frac{logx}{x}\) has maximum at x=e
Water rises to a height of 10 cm in a capillary tube and mercury falls to a depth of 3.5 cm in the same capillary tube. If the density of mercury is 13.6 g/cc and its angle of contact is $ 135{}^\circ $ and density of water is 1 g/cc and its angle of contact is $ 0{}^\circ $ , then the ratio of surface tensions of the two liquids is: $ \left( \text{cos }135{}^\circ =0.7 \right) $
The average velocity of a freely falling body is numerically equal to half of the acceleration due to gravity. The velocity of the body as It reaches the ground is
If $X=\{1,2,3, \ldots, 10\}$ and $A=\{1,2,3,4,5\}$. Then, the number of subsets $B$ of $X$ such that $A-B=\{4\}$ is
The ionization enthalpy of second period elements vary with atomic number as The elements present at points B and E are
A convex lens of glass is immersed in water compared to its power in air, its power in water will
A committee of 11 members is to be formed from 8 males and 5 females. Let m denotes the number of ways of selecting committee having atleast 6 males and n denotes the number of ways of selecting atleast 3 females then

I am sometimes unsure about how well I fit in with other people.

I make sure that people hear what I have to say.

Instead of sleeping, I may get a bit anxious about things which could go wrong.

I share my thoughts and feelings.

I could not work long without having people around to mix with.

I prefer not to discuss with anyone what I am going to do.

I consider people disagreeing with me as a challenge.

I am frequently spontaneous in reacting to something that has happened.

I have troubles which weigh me down.

The way I tackle a difficult problem is immediately.

It is up to people if they keep their thoughts to themselves, I still say what I think.