List of practice Questions

When earth moves round the sun, the quantity which remains constant is:
A particle moves along Y-axis in such a way that its y-coordinate varies with time $t$ according to the relation $y = 3 +5t + 7t ^2$. The initial velocity and acceleration of the particle are respectively
$1$ kg body explodes into three fragments. The ratio of their masses is $1:1:3$. The fragments of same mass move perpendicular to each other with speeds $30$ m/s, while the heavier part remains in the initial direction. The speed of heavier part is:
Ubisch bodies are present in :
Two rods of same material have same length and area. The heat $ \Delta Q $ flows through them for $12\, min$ when they are joint side by side. If now both the rods are joined in parallel, then the same amount of heat $ \Delta Q $ will flow in:
FSH is secreted by
During strenuous exercise glucose is converted into
During the meiotic division, the:
Crown gall disease in plants is caused by:
Which of the following is an edible 'Fungi' ?
Inter-articulated disc is found in
Carapace is present on the dorsal surface of:
A machine which is 75% efficient, uses 12 J of energy in lifting 1 kg mass through a certain distance. The mass is then allowed to fall through the same distance. The velocity at the end of its fall is
Which of the following is responsible for synthesis of enzyme in seed germination ?
When a man increases his speed by $2\, ms^{-1}$, the finds that his kinetic energy is doubled, the original speed of the man is
What is the drift velocity of electons, if the current flowing through a copper wire of $1\,mm$ diameter is $1.1\, A$ ? Assume that each atom of copper contributes on electron (Given, density of $Cu= 9 g \, cm^{-3}$ and atomic weight of $Cu = 63$)
Urea formation takes place in
Symmetry in Cnidaria is
Stalk with which ovules remain attached to placenta is called
Loop of Henle is associated with
Magnification of a compound microscope is $30$. Focal length of eyepiece is $5\, cm$ and the image is formed at a distance of distinct vision $25\, cm$. The magnification of the objective lens is :
Litmus is obtained from
Kingdom protista includes
Jute fibres are
In genetic engineering experiment, DNA fragments are joined by