List of practice Questions

A can is moving horizontally along a straight line with constant speed $30\, m/s$. A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved $80 \,m$. At what speed (relative to the can) must the projectile be fired? (Takes $ =10\,m/{{s}^{2}} $ )
In the first second of its flight, rocket ejects 1/60 of its mass with a velocity of $ 2400\,\,m{{s}^{-1}} $ . The acceleration of the rocket is:
A body starts from rest with an uniform acceleration. If its velocity after $n$ seconds is $v$, then its displacement in the last $2\,s$ is
In $LCR$ circuit $ {f = \frac{ 50 }{ \pi} \, Hz, V = 50 \, volt, R = 300 \, \Omega}$ . If $L = 1 \, H$ and $C = 20 \, \mu \, C$, then voltage across capacitor is
Which one has highest binding energy per nucleon?
A block of mass $10\, kg$ is placed on rough horizontal surface whose coefficient of friction is $0.5$. If a horizontal force of $100 \,N$ is applied on it, then acceleration of the block will be :-
A person sees clearly at a distance of 100 cm, then power of lens used to see object at 40 cm is
Which of the following is the largest gland in an adult man
Who is known as ''father of endocrinology''
Which of the following statements is true for an n-type semiconductor?
What is the main cause for the extinction of some species in tropical forests
The motion of a particle varies with time according to the relation $ y=a(\sin \omega t+\cos \omega t) $
The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall $4\, m$ away by means of a large convex lens. The maximum possible focal length of the lens required for this purpose will be:
Podocytes are the cells, present in :
In which of the following putrefying bacteria are present
Lichen is the pioneer vegetation on which succession
In Mollusca, eye is present over a stalk, called :
In Ascaris, the coelom is :
If boiling point of water is $ 95{}^\circ F, $ what will be reduction at celsius scale?
Crop rotation helps in
Rh factor is present in
Cleavage polyembryony occurs in :
In Amoeba, the contractile vacuole is present
Carbon, silicon and germanium have four valence electrons each. These are characterized valence and conduction bands separated by energy band gap respectively equal to $ {{(Eg)}_{C}},{{(Eg)}_{Si}} $ and $ {{(Eg)}_{Ge}} $ . Which of the following statements is true?
The yeild of Rice is increased by