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Biology

1.

The amino acid derivative among the following hormone is:-
1. Insulin
2. Epinephrine
3. Estradiol
4. Testosterone

2.

In oocyte of some vertebrates, the stage of meiosis I that can last for months or years would be:
1. Zygotene
2. Pachytene
3. Diplotene
4. Diakinesis

3.

Consider the following statements:
I. A motor neuron along with the muscle fibres connected to it constitute a motor unit
II. The neurotransmitter released at the neuro-muscular junction is Acetylcholine.
III. Myosin head has ATPase activity.
Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II, and III

4.

Match each item in Column I with one item in Column II and choose your answer from the codes given below:

Codes :

5.

Which of the following is a temporary endocrine gland in the human body?
1. pineal gland
2. corpus cardiacum
3. corpus Luteum
4. corpus allatum

6.

You are given a fairly old piece of dicot stem and a dicot root. Which of the following
anatomical structures will you use to distinguish between the two?
1. Secondary xylem
2. Secondary phloem
3. Protoxylem
4. Cortical cells

7.

Which of the following minerals reduces the excitability of nerves and muscles?
1. Potassium
2. Sodium
3. Magnesium
4. Manganese

8.

When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
(1) Zygotene
(2) pachytene
(3) diplotene
(4) diakinesis.

9.

Which one of the following pairs is the matching pair of the part and the hormone it secretes?
1. Anterior pituitary - Thyroxine
2. Alpha cells of pancreas - Glucagon
3. Thyroid - Epinephrine
4. Stomach epithelium - Secretin

10.

Which of the following is the largest tissue system
1. Epidermal tissue system
2. vascular tissue system
3. Ground tissue system
4. Both 2 and 1

11.

Conjoint open vascular bundles are present in
1. stem of dicots only
2. stem of dicots and gymnosperms
3. stem of monocots and gymnosperms
4. stem of monocots only

12.

During meiosis I in human, one of the daughter cells receives:
(1) Only maternal chromosomes
(2) A mixture of maternal and paternal chromosomes
(3) The same number of chromosomes as a diploid cell
(4) A sister chromatid from each chromosome

13.

In prophase mitosis, which one of the following events occurs in animal cells but not in plant cells?
(1) Centrioles migrate to opposite sides of the nucleus
(2) hom*ologous chromosomes do not associate
(3) The nuclear envelope (membrane) breaks down
(4) Nucleoli disappear

14.

A. Most dramatic period of cell cycle involving a major reorganization of virtually all components of the cell
B. It represents the phase when the actual cell division occurs
These statements (A & B) are concerned with
1. S-phase
2. G₁ phase
3. M-phase
4. G₂ phase

15.

Which of the following does not has brain?

(1) Hydra
(2) Insects
(3) Vertebrates
(4) Earthworm

16.

The rise in stimulus-induced permeability to
a. Potassium ions
b. Sodium ions
c. Restoring RMP
d. Diffusion of potassium ions
Arrange them in order.

1. b-a-c-d
2. a-b-c-d
3. b-a-d-c
4. c-a-d-b

17.

Thalamus is not

(1) Something around which Cerebrum wraps
(2) a major coordinating centre for sensory and motor signaling.
(3) Both 1 and 2
(4) A part of midbrain

18.

Which of the following parts of the hindbrain is attached to the spinal cord?

(1) Cerebellum
(2) Cerebrum
(3) Pons
(4) Medulla

19.

Which of the following cell type of vascular tissue system of plants is not correctly matched with its function?

20.

In the given diagram of the human skull, the bones represented by the letters A, B, and C are respectively:

1. Sphenoid, Ethmoid and Lacrimal
2. Ethmoid, Sphenoid and Lacrimal
3. Sphenoid, Lacrimal and Ethmoid
4. Ethmoid, Lacrimal and Sphenoid

21.

Maturation of lymphocytes takes place in

(1) thymus
(2) Bone marrow
(3) Liver
(4) Both 1 and 2

22.

All the hormones of the adrenal cortex are known as
1. Catecholamines
2. Corticoids
3. Cortisol
4. Both 1 and 2

23.

24.

Choose odd with respect to collenchyma
1. Living mechanical tissue
2. Intercellular space is absent in angular type
3. Thickening of the wall is due to deposition of lignin
4. Found in hypodermis of dicot stem

25.

Dicot root is different from monocot root in having
1. Fewer xylem bundles
2. Polyarch condition
3. Large and well-developed pith
4. Pericycle

26.

The stage during which chiasmata becomes visible is
1. Pachytene
2. Diplotene
3. Diakinesis
4. Zygotene

27. Periderm and secondary phloem constitute:
1. bark
2. cork
3. heart wood
4. sap wood

28. Read the given statements and select the correct one

29. Nerve impulse

Choose the correct answer from the options given below:
1. A and E only
2. B, C and D only
3. C, D and E only
4. B and D only

30. Dwarfism occurs when there is
(i) Over secretion of growth hormone
(ii) Under secretion growth hormone
(iii) Over secretion of somatostain
(iv) Under secretion of somatostatin
1. (i) and (iii)
2. Only (ii)
3. (ii) and (iii)
4. (ii) and (iv)

Chemistry

31.

The first line in the Lyman series in the spectrum of hydrogen atom occurs at a wavelength of 1215 Å and the limit for Balmer series is 3645 Å. Calculate the wavelength corresponding to series limit of Lyman series.
1. 911.2 Å
2. 812.2 Å
3. 712.2 Å
4. 678.4 Å

32.

Arrange the following particles in increasing order of values of e/m ratio: Electron(e), proton(p), neutron(n) and α-particle(α)
1. n,p,e,α
2. n,α,p,e
3. n,p,α,e
4. e,p,n,α

33.

The number of d- electrons retained in Fe<sup>2+ :
1. 5
2. 6
3. 3
4. 4</sup>

34.

The work function of a metal is 4.2 eV. If radiations of 2000$A^0$ fall on the metal then the kinetic energy of the fastest photoelectron is
1. 1.6 x 10^-19J
2.16 x 10¹⁰J
3.3.2 x 10^-19J
4.6.4 x 10^-10J

35.

During the formation of ammonia by Haber's process N₂+ 3H₂ → 2NH₃, the rate of appearance of NH₃ was measured as 2.5 x 10^-4 mol L^-1 s^-1. The rate of disappearance of H₂ will be:
1. 2.5 x 10^-4 mol L^-1s^-1
2. 1.25 x 10^-4 mol L^-1s^-1
3. 3.75 x 10^-4 mol L^-1s^-1
4. 15.00 x 10^-4 mol L^-1s^-1

36.

For a chemical reaction, A$\to$ products, the rate of reaction doubles when the concentration of A is increased by 4 times. The order of the reaction is
1. 4
2. 0
3. 1/2
4. 1

37.

The correct expression for the 3/4th life of a first-order reaction is:
$1.\frac{\mathrm{k}}{2.303}\log \frac{4}{3}$
$2.\frac{2.303}{\mathrm{k}}\log \frac{3}{4}$
$3.\frac{2.303}{\mathrm{k}}\log$$4$
$4.\frac{2.303}{\mathrm{k}}$$\log$$3$

38.

Bohr's model is not valid for:-
1. H-atom
2. D-atom
3. T-atom
4. He-atom

39.

For a first-order reaction, the time required for 99.9% of the reaction to take place is nearly :
(1) 10 times that required for half of the reaction
(2) 100 times that required for two-third of the reaction
(3) 10 times that required for one-fourth of the reaction
(4) 20 times that required for half of the reaction

40.

When an electron jumps from n=5 to n=1 in a hydrogen atom, the number of spectral lines obtained is

41.

In the reaction,
${\mathrm{BrO}}_3^{-}\left(\mathrm{aq}\right)+5{\mathrm{Br}}^{-}\left(\mathrm{aq}\right)+6{\mathrm{H}}^{+}\to$3Br₂(l)+3H₂O(l)
The rate of appearance of bromine (Br₂) is related to the rate of disappearance of bromide ions:
1.$\frac{d\left[B{r}_2\right]}{dt}=-\frac{3}{5}\frac{d\left[B{r}^{-}\right]}{dt}$
2.$\frac{d\left[B{r}_2\right]}{dt}=-\frac{5}{3}\frac{d\left[Br\right]}{dt}$
3.$\frac{d\left[B{r}_2\right]}{dt}=\frac{5}{3}\frac{d\left[B{r}^{-}\right]}{dt}$
4.$\frac{d\left[B{r}_2\right]}{dt}=\frac{3}{5}\frac{d\left[B{r}^{-}\right]}{dt}$

42.

The reaction of hydrogen and iodine monochloride is given as:
H₂(g) + 2ICl(g)→2HCl(g) +I₂(g)
This reaction is of first order with respect to H₂(g) and ICl(g), for which of the following proposed mechanisms:
Mechanism A:
H₂(g) + 2ICl(g)→2HCl(g) +I₂(g)
Mechanism B:
H₂(g) + ICl(g)→HCl(g) + HI(g); slow
HI(g) + ICl(g)→HCl(g) +I₂(g); fast
1. B Only
2. A and B both
3. Neither A nor B
4. A only

43.

For a 4p orbital, the number of radial and angular nodes respectively are
1. 3, 2
2. 1, 2
3. 2, 4
4. 2, 1

44.

The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 metres per second is approximate-
(Planck's constant,$h=6.63\times {10}^{-34}Js$)
1.${10}^{-33}$metres
2.${10}^{-31}$metres
3.${10}^{-16}$metres
4.${10}^{-25}$metres

45.

The half-life of⁹²U₂₃₈against\(\alpha\)-decay is 4.5 × 10⁹year.The time taken in a year for the decay of the 15/16 part of this isotope will be:
1.$9.0\times {10}^9$
2.$1.8\times {10}^{10}$
3.$4.5\times {10}^9$
4.$2.7\times {10}^{10}$

Physics

46.

If the current in an AC circuit is given as$\mathrm{i}=\left(5\mathrm{A}\right)\sin \left(\mathrm{\omega t}-\frac{\mathrm{\pi }}{3}\right)$when an emf$\mathrm{e}=\left(200\mathrm{V}\right)\mathrm{sin\omega t}$is applied across the circuit. The circuit has components-
1. L and C
2. L and R
3. C and R
4. None of these

47.

A step-down transformer is connected to 2400 volts line and 80 amperes of current is found to flow in output load. The ratio of the turns in primary and secondary coil is 20 : 1. If transformer efficiency is 100%, then the current flowing in primary coil will be
(1) 1600 A
(2) 20 A
(3) 4 A
(4) 1.5 A

48.

A uniform magnetic field, parallel to the plane of the paper existed in space initially directed from left to right. When a bar of soft iron is placed in the field parallel to it, the lines of force passing through it will be represented by
1.
2.
3.
4.

49.

A cylindrical rod magnet has a length of 5 cm and a diameter of 1 cm. It has a uniform magnetization of 5.30 × 10³Amp/m³. What is its magnetic dipole moment?
1.$1\times {10}^{-2}J/T$
2.$2.08\times {10}^{-2}J/T$
3.$3.08\times {10}^{-2}J/T$
4.$1.52\times {10}^{-2}J/T$

50.

Two short magnets of equal dipole moments M are fastened perpendicularly at their centres (figure). The magnitude of the magnetic field at a distance dfrom the centre on the bisector of the right angle is :

1.$\frac{{\mu }_0}{4\mathrm{\pi }}\frac{M}{d^3}$
2.$\frac{{\mu }_0}{4\mathrm{\pi }}\frac{M\sqrt{2}}{d^3}$
3.$\frac{{\mu }_0}{4\mathrm{\pi }}\frac{2\sqrt{2}M}{d^3}$
4.$\frac{{\mu }_0}{4\mathrm{\pi }}\frac{2M}{d^3}$

51.

52.

The dimension of$\frac{1}{2}{\epsilon }_0{E}^2,$where${\epsilon }_0$is permittivity of free space and E is electric field, is
(a)$\left[M{L}^2{T}^{-2}\right]$ (b)$\left[M{L}^{-1}{T}^{-2}\right]$
(c)$\left[M{L}^2{T}^{-1}\right]$ (d)$\left[ML{T}^{-1}\right]$

53.

In an ideal transformer, the voltage and the current in the primary are 200 volt and 2 amp. respectively. If the voltage in the secondary is 2000 volt. Then value of current in the secondary will be –
1. 0.2 amp.
2. 2 amp.
3. 10 amp.
4. 20 amp.

54.

Which one of the following statements is true?

55.

An electromagnetic wave going through the vacuum is described by$E=E_0\sin (kx-\omega t).$
Which is the following is/are independent of the wavelength?

56.

A variable frequency AC source is connected to a capacitor. Then on increasing the frequency:

57.

In an electromagnetic wave, energy density associated with a magnetic field will be:
1.$\frac{1}{2}L{I}^2$
2.$\frac{B^2}{2{\mu }_0}$
3.$\frac{1}{2}{\mu }_0{B}^2$
4.$\frac{1}{2}\frac{q}{B^2}$

58.

If an electromagnetic wave of frequency f = 3 MHz passes from vacuum into a dielectric medium with relative permittivity K= 4.0, then:

59.

Which of the following property of magnetic materials is observed in all the materials?
1. Ferromagnetism
2. Paramagnetism
3. Diamagnetism
4. Electromagnetism

60.

A substance is placed in an external magnetic field. If the direction of induced dipole moment is opposite to the direction of the applied magnetic field, then the substance may be
1. Paramagnetic
2. Diamagnetic
3. Ferromagnetic
4. Both (1) & (3)

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