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Which of the following is a major coordinatingcenter for sensory and motor signaling for the cerebrum?
(1) Hypothalamus
(2) Thalamus
(3) Corpora quadrigemina
(4) Amygdala

The sensory neuron enters the spinal cord through:
(1) The dorsal root of the spinal nerve
(2) The ventral root of the spinal nerve
(3) Either dorsal or ventral root depending on the point of origin
(4) Both dorsal and ventral roots of the spinal nerves

From inside to outside the correct order of the following cells in the retina would be:
(1) Ganglion cells - Photoreceptor cells - Bipolar cells
(2) Ganglion cells - Bipolar cells - Photoreceptor cells
(3) Bipolar cells - Photoreceptor cells - Ganglion cells
(4) Photoreceptor cells - Ganglion cells - Bipolar cells

In the human eye, the visual acquity is highest at:
(1) Macula lutea
(2) Optic disc
(3) Fovea centralis
(4) Optic chiasma

A characteristic of human cornea is:
(1) absence of blood circulation
(2) cause cataract in old age
(3) has lacrimal glands for secreting tears
(4) secreted by conjunctiva and glandular layer

Most sensory receptors function by producing depolarising potentials. Which of the following function by hyperpolarization rather than depolarization?
(1) proprioceptors
(2) nociceptors
(3) olfactory receptors
(4) rods and cones
 

Which of the following would occur if a neuron was experimentally stimulated simultaneously at both ends?
(1) The action potentials would pass in the middle and travel to the opposite ends.
(2) The action potentials would stop as they meet in the middle.
(3) The stronger action potential would override the weaker action potential.
(4) Summation would occur when the action potentials meet in the middle, resulting in a larger action potential.

$2\mathrm{CO}\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2{\mathrm{CO}}_2\left(\mathrm{g}\right)$
$∆\mathrm{H}$ is enthalpy change & $∆\mathrm{U}$ is the internal energy change for the process. For the given reaction, which one of the following is correct?
1. $∆\mathrm{H}=∆\mathrm{U}$
2. $∆\mathrm{H}>∆\mathrm{U}$
3. $∆\mathrm{H}<∆\mathrm{U}$
4. Relation between $∆\mathrm{H}$ and $∆\mathrm{U}$ depends upon capacity of vessel

An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If T_i is the initial temperature and T_f is the final temperature then which of the following statement is correct?
1. ${\left({\mathrm{T}}_{\mathrm{f}}\right)}_{\mathrm{reversible}}={\left({\mathrm{T}}_{\mathrm{f}}\right)}_{\mathrm{irreversible}}$
2. ${\mathrm{T}}_{\mathrm{f}}={\mathrm{T}}_{\mathrm{i}}$ for both reversible and irreversible process
3. ${\left({\mathrm{T}}_{\mathrm{f}}\right)}_{\mathrm{irreversible}}>{\mathrm{T}}_{\mathrm{reversible}}$
4. ${\mathrm{T}}_{\mathrm{f}}>{\mathrm{T}}_{\mathrm{i}}$ for reversible process but ${\mathrm{T}}_{\mathrm{f}}={\mathrm{T}}_{\mathrm{i}}$ for irreversible process

In which of the following case $\left(∆\mathrm{H}<∆\mathrm{U}\right)$? $∆\mathrm{H}$ is enthalpy change & $∆\mathrm{U}$ is the internal energy change for the process
1. ${\mathrm{CaCO}}_3\left(\mathrm{s}\right)\to \mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)$
2. ${\mathrm{NH}}_4\mathrm{HS}\left(\mathrm{s}\right)\to {\mathrm{NH}}_3\left(\mathrm{g}\right)+{\mathrm{H}}_2\mathrm{S}\left(\mathrm{g}\right)$
3. ${\mathrm{H}}_2\left(\mathrm{g}\right)+{\mathrm{I}}_2\left(\mathrm{g}\right)\to 2\mathrm{HI}\left(\mathrm{g}\right)$
4. $2{\mathrm{NO}}_2\left(\mathrm{g}\right)\to {\mathrm{N}}_2{\mathrm{O}}_4\left(\mathrm{g}\right)$

2 moles of $O_2$ and 1 mole of He are mixed in a container. Which of the following is correct about entropy change $\Delta S$ of the in process?
(1) $\Delta S<0$
(2) $\Delta S>0$
(3) $\Delta S=0$
(4) $\Delta S<mspace\; width="1em"></mspace>is<mspace\; width="1em"></mspace>indeterminate$

$∆{\mathrm{H}}_{\mathrm{neutralization}}$ of weak acids HA and HB by NaOH are -6900 cal/equivalent and -2900 cal/equivalent respectively. when one equivalent of NaOH is added to a solution containing one equivalent of HA & one equivalent of HB, then the enthalpy change was -3900 cal. In what ratio, NaOH is distributed between HB & HA?
1. 1:3
2. 3:1
3. 2:1
4. 1:2 

Current due to motion of electron in $1^{st}$ bohr orbit of hydrogen atom is:
(1) 1 mA
(2) 10 mA
(3) 100 mA
(4) 0.1 mA

V-I graph for two resistances $R_A and R_B$ is given below. Which of the following is the correct statement?

(1) $R_A=R_B$
(2) $R_A<R_B$
(3) $R_A=R_B$
(4) Both 1 & 3 are correct

9 resistances of equal value R are connected in a circuit as shown below, Equivalent resistance across points A & B is

(1) 4.5 R
(2) 2.5 R
(3) 3 R
(4) 4 R

All resistances in the figure are of 1 $\Omega$ Net resistance across A & B is:

(1) 1.5 $\Omega$
(2) 1.0 $\Omega$
(3) $2.0 \Omega$
(4) 0.5 $\Omega$

Total resistance of a wire of length L & is R. It is bent in the form of a circle of diameter D. Net resistance across points A & B will be.

(1) 0.5 R
(2) 0.25 R
(3) 1 R
(4) cannot be determined