List of practice Questions

In deliquenscent trees, the crown is
A double convex lens made of glass of refractive index $1.56$ has both radii of curvature of magnitude $20 \,cm$. If an object is placed at a distance of $10 \,cm$ from this lens, the position of the image formed is
A double convex lens of focal length f is cut into 4 equivalent parts. One cut is perpendicular to the axis and the other is parallel to the axis of the lens. The focal length of each part is
A dithecous anther consists of $(i)$ microsporangia, $(ii)$ in each lobe.
A dispersion of AgCl in water is
A dikaryon is formed when
A diode as a rectifier converts
A diode used as a rectifier is
$A$ die is rolled. Let $E$ be the event "die shows $4$" and $F$ be the event "die shows even number". Then, $E$ and $F$ are
Adventitive polyembryony occurs in
Grain covering of Maize is formed of
In onion seed which is not differentiable
Moisture content of a mature seed is
A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is
Outer multicellular solid and inner liquid endosperm occurs in
Tritegmic ovules occur in
Vegetative fertilization is characterised by
A dice is thrown twice. The probability of getting 4, 5 or 6 in the first throw and 1, 2, 3 or 4 in the second throw is
Scotopic vision is due to
Modified sebaceous glands that open over free margins of eye lids are
Rods and cones are partially embedded in
Suspensory ligaments of eye connect lens with
Aurbach's plexus controls
Conditioned reflex develops due to
Mucus is secreted over the olfactory epithelium by