List of practice Questions

The relative viscosity of blood remains constant between
Gravitational potential energy associated with two point masses, each of 1 kg, separated by a distance of 1cm in Joule is (G= gravitational constant)
The angular momentum of a particle with respect to the origin will not zero, if
A solid metal cylinder A and a hollow metal cylinder B have same mass but their radii are in the ratio 2: 1. Then the ratio of their respective moments of inertia about their own axis is
Two persons stand at the edges of a rotating circular platform at diametrically opposite points. If they start moving towards each other at uniform velocity, then its
A toy car of mass 80g is maintained to move in a horizontal circle of radius 0.8m with a velocity v ms-1. If the centripetal force acting on it is 10 N, then the value of v in ms-1 is
In a tug of war, two opposite teams pull the rope with an equal and opposite force of 20 kN at each end of the rope. If the equilibrium condition exists in the rope, the tension in it is
Which one of the following is the correct statement?
Work- energy theorem in an integral form of
Two bodies of masses m and 4m have kinetic energies in the ratio 1: 2. Their momenta p1 and p2 are in the ratio
Which one of the following is not a contact force?
In projectile motion, the physical quantity that remains invariant throughout is
The angle made by \(\overrightarrow{r}=3\overrightarrow{i}+3\overrightarrow{j}\) with the x axis is
A cyclist starting from rest moves with uniform acceleration and covers 120m in 10s. Then his acceleration in ms-2 is
The final result of the sum of the numbers 523.32, 1.21524 and 107.3 rounded to correct significant figures is
The technonlogy related with the Bernoulli's principle is used in
The dimensional formula for the power of a lens is
Let the system of linear equations \[ x + 2y + z = 2, \quad \alpha x + 3y - z = \alpha, \quad -\alpha x + y + 2z = -\alpha \] be inconsistent. Then $\alpha$ is equal to:
Let
A = \(\begin{pmatrix}1 & 2\\ -2 & -5 \end{pmatrix}\)
Let \( \alpha, \beta \in \mathbb{R} \) be such that \( \alpha A^2 + \beta A = 2I \). Then \( \alpha + \beta \) is equal to 
What is [NH₄⁺] in a solution that is 0.02 M NH₃ and 0.01 M KOH? $$ K_b (\text{NH}_3) = 1.8 \times 10^{-5} $$ 
The equation of the plane which bisects the angle between the planes $$ 3x - 6y + 2z + 5 = 0 \quad \text{and} \quad 4x - 12y + 3z - 3 = 0 \quad \text{which contains the origin is:} $$ 
The molar conductivity is maximum for the solution of concentration
In fuel cell ___ are used as catalysts.

Which of the following colligative properties can provide molar mass of Proteins, Polymers and colloids with greater precision? 

Which of the following is NOT true about the amorphous solids ?