List of top Questions asked in Haryana PMT

Carrot is micropropagated through
Endosperm of gymnosperms
To which of the following category dinosaurs belong ?
Cartilaginous fishes belong to the class
The part which is grafting on stalk of another tree is called
Budding method of asexual reproduction is found in
Two radioactive substances $A$ and $B$ have decay constants 5 $\lambda$, and $\lambda$ respectively. At $t\, =\, 0$, they have the same number of nuclei. The ratio of number of nuclei of $A$ to those of $B$ will be $(1/e^2)$ after a time
A small body of mass $m$ slides without friction from the top of a hemisphere of radius $r$. At what height will the body be detached from the centre of the hemisphere?
The angular speed of a body changes from $\omega_1$ to $ \omega_2$ without applying a torque, but due to change in moment of inertia. The ratio of radii of gyration in the two cases is
If both the mass and radius of earth decrease by $1\%$, the value of (I) acceleration due to gravity would increase by $1\%$ (II) acceleration due to gravity would decrease by $1\%$ (III) escape velocity from earth's surface would decrease by $1 \%$ (IV) the gravitational potential energy of a body on earth's surface will remain unchanged
The objectives with large apertures are used in telescopes for
How long will a passenger sitting at the window of a train travelling at a speed of 54 km$h^{-1}$ see a train,passing by in the opposite direction with a speed of 36 km$h^{-1}$ , if the length of the second train is 150 m?
If a, b, c and d are mass, length, time and current respectively, then $b^2 \, a/ c^3$ d has the dimensions of
A faulty thermometer has its fixed point marked as $5^{\circ}$ and $95^{\circ}$. The temperature of a body as measured by the faulty thermometer is $59^{\circ}$. The correct temperature of the body on Celsius scale is
Which of the following is responsible for blood clotting (coagulation) ?
In cockroaches during the digestion of food, the enzyme cellulase is synthesised by
The dimension of light year is :
If for a particle executing SHM, the equation of SHM is given as y= a cos $\omega$t Then which of the following graph represents the variation in its potential energy?
A stone tied to one end of spring $80\,cm$ long is whirled in a horizontal circle with a constant speed. If stone makes $25 $ revolutions in $14 \sec$, the magnitude of acceleration of stone is :
Which isotope is likely to be most stable?
The formation of ice is started in a lake with water at $0^{\circ} C$. When the atmospheric temperature is $-10^{\circ} C$. If time taken for $1 \,cm$ of ice to be formed is $7$ hours, the time taken for the thickness of ice to increase from $1 \,cm$ to $2 \,cm$ is :
When metals react with non-metals, the metal atom tends to
What bond order does $Li_2$ have?
Polyethylene is a resin obtained by polymerization of:
The term $ \frac{-dc}{dt} $ in a rate equation refers to: