List of practice Questions

A heavy stone hanging from a massless string of length $15\, m$ is projected horizontally with speed $147\, m/ s$. The speed of the particle at the point where the tension in the string equals the weight of the particle is?
Innate immunity is provided by
A ball is projected upwards from a height h above the surface of the earth with velocity v. The time at which the ball strikes the ground is
Which is connecting link between reptiles and aves
A substance called ADH is
Transition elements are generally used as catalyst because
Turner's syndrome is an example of
One mole of glucose on metabolism liberates how many kilo calories of energy for use in the body
The skip zone in radio wave transmission is that range where
The enzyme responsible for atmospheric nitrogen fixation is:
Which of the following is true for rays coming from infinity?
Which is true for rolling friction $\left(\mu_{r}\right)$, static friction $\left(\mu_{s}\right)$ and kinetic friction $\left(\mu_{k}\right)$ :
If a body moves for 2 s with 15 m/s velocity towards east and then moves with 5 m/s velocity for 8 s towards north, then average velocity is :
The width of the diffraction band varies
A beam of light of wavelength $600\, nm$ from a distant source falls on a single slit $1mm$ wide and the resulting diffraction pattern is observed on a screen $2m$ away. The distance between the first dark fringes on either side of the central bright fringe is
A galvanometer has a resistance of 50$\Omega$. If a resistance of 1$\Omega$ is connected across its terminals, the total current flow through the galvanometer is [$I_g$ represents the maximum current that can be passed through the galvanometer]
A network of four capacitors of capacity equal to $C_{1}=C, C_{2}=2 C, C_{3}=3 C$ and $C_{4}=4 C$ are connected to a battery as shown in the figure. The ratio of the charges on $C_{2}$ and $C_{4}$ is.:
"Ordines Anomali" of Bentham and Hooker includes
From a balloon rising vertically upwards as $ 5\,m/s $ a stone is thrown up at $10 \,m/s$ relative to the balloon. Its velocity with respect to ground after $ 2\,s $ is (assume $ g=10\,m/s^{2} $ )

Which one of the following is a non-biodegradable pollutant?

The unit of natural selection is
Which is a sex influenced trait ?
Two identical springs are connected in series and parallel as shown in the figure. If $ f_{s} $ and $ f_{p} $ are frequency of series and parallel arrangement what is $ \frac{f_{s}}{f_{p}} $ ?
Transformation in bacteria was discovered by:
To increase magnifying power of telescope, we should increase: