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SRMJEE Mock Test (Med) - 4

105 Questions MCQ Test SRMJEEE Subject Wise & Full Length Mock Tests | SRMJEE Mock Test (Med) - 4

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Attempt SRMJEE Mock Test (Med) - 4 | 105 questions in 150 minutes | Mock test for JEE preparation | Free important questions MCQ to study SRMJEEE Subject Wise & Full Length Mock Tests for JEE Exam | Download free PDF with solutions
QUESTION: 1

Solution:
QUESTION: 2

Solution:
QUESTION: 3

The resonant frequency of a circuit is f. If the capacitance is made 4 times the initial value, then the resonant frequency will becomes

Solution:

f = 2π/√LC
∴ f' = 2π/√4LC = 1/2 x 2π/√LC = f/2

QUESTION: 4

A body is moving in a circular path with a constant speed. It has

Solution:
QUESTION: 5

In an inelastic collision between two bodies, the physical quantity that is conserved

Solution:
QUESTION: 6

The length of a given cylindrical wire is increased by 100%. Due to the consequent decrease in diameter the change in the resistance of the wire will be

Solution:

Since the volume will remain the same
And the wire is in the form of a cylinder
πr12l1 = πr22l2
so there fore
r12l1 = r22l2
so on l1 is the initial length, which is streched n times to the final length
l1 = l,,,,, l2 = nl
on substituing the values R2 = n2R
Here in this question the value of n will be 2 as the length is increased by on substituing the value
R2 = 4R
Which is a 300% increase

QUESTION: 7

The ratio of the lengths of two wires A and B of same material is 1:2 and the ratio of their diameter is 2:1. They are stretched by the same force, then the ratio of increase in length will be

Solution:
QUESTION: 8

Photons of energy 6eV are incident on a metal surface whose work function is 4eV. The minimum kinetic energy of the emitted photoelectrons will be

Solution:

Minimum kinetic energy is always zero.

QUESTION: 9

Consider the following statement for a bridge type rectifier
1. Centre tap is not required for the secondary of the transformer.
2. The output will be half wave rectification if one of the diodes of the bridge circuit gets open circuited.
3. The bridge requires four diodes
4. If one of the diodes gets short circuited, the transformer will be short circuited.
Which of the above statements are correct?

Solution:
QUESTION: 10

On the horizontal surface of a truck (μ=0.6), a block of mass 1 kg is placed.If the truck is accelerating at the rate of 5 m/sec2 then frictional force on the block will be

Solution:
QUESTION: 11

Two electric charge 12 μ C and − 6 μ C are places 20 cm apart in air. There will be a point P at which electric potential is zero on the line joining these two charges and outside, excluding the region between them. The distance of P from − 6 μ C charge is

Solution:
QUESTION: 12

The maximum wavelength of radiation emitted at 2000 K is 4 μm. What will be the maximum wavelength of radiation emitted at 2400 K?

Solution:
QUESTION: 13

The mass of the moon is about 1.2% of the mass of the earth. Compared to the gravitational force the earth exerts on the moon, the gravitational force the moon exerts on earth

Solution:
QUESTION: 14

If pressure of a gas contained in a closed vessel is increased by 0.4% when heated by 1oC, the initial temperture must be

Solution:
QUESTION: 15

A lift is moving down with an acceleration a. A man in the drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift, and a man standing stationary on the ground are respectively

Solution:
QUESTION: 16

The domain formation is a necessary feature of

Solution:
QUESTION: 17

The coil of a moving coil galvanometer is wound over a metal frame in order to

Solution:
QUESTION: 18

A car accelerated from initial position and then returned at initial point, then

Solution:
QUESTION: 19

The change in surface energy, when a drop of surface tension T and radius of R splits into 1000 droplets of radius r, is

Solution:
QUESTION: 20

The general motion in three dimensions may be

Solution:
QUESTION: 21

A person of 70kg mass is lifted by a helicopter with the help of rope hanging from it. If the helicopter is rising with an acceleration of 4 ms-2, the tension in the rope is (g=10 ms-2)

Solution:
QUESTION: 22

The force constant of two springs are k1 and k2 respectively. Both are stretched till their potential energies are equal. The forces f1 and f2 applied on them are in the ratio

Solution:

Potential energy of spring u = 1/2 = kx2
k = force constant, x = increase in length
u1 = 1/2 k1x12
u2 = 1/2 k2x22
According to question
u1 = u2
1/2 k1x12 = 1/2 k2x22  QUESTION: 23

A ball is projected upwards from the top of tower with a velocity 50 ms-1 making an angle 30owith the horizontal. The height of the tower is 70 m. After how many seconds from the instant of throwing will the ball reach the ground?

Solution:
QUESTION: 24

In a streamline flows if the gravitational head is h. The kinetic and pressure heads are

Solution:
QUESTION: 25

While viewing a distant object with a telescope, suddenly a housefly sits on objective lens. The correct statement is that

Solution:
QUESTION: 26

The moment of Inertia of a solid cylinder of mass M and radius R about a line parallel to the axis of the cylinder but lying on the surface of the cylinder is

Solution:
QUESTION: 27

The density of a cube is measured by measuring its mass and length of its sides. If the maximum error in the measurement of mass and length are 4% and 3% respectively, then the maximum error in the measurement of density would be

Solution:
QUESTION: 28

Small droplets of a liquid are usually more spherical in shape than larger drops of the same liquid because

Solution:
QUESTION: 29

If the cold junction of thermocouple is lowered, then the neutral temperature

Solution:
QUESTION: 30

A vessel is filled with an ideal gas at a pressure of 20 atm and is at a temperature of 27 oC . One half of the mass is removed from the vessel and the temperature of the remaining gas is increased to 87 oC . At this temperature the pressure of the gas will be ...

Solution:
QUESTION: 31

A gas for which γ = 1.5 is suddenly compressed to 1/4 th of the initial volume. Then the ratio of the final to initial pressure is

Solution:
QUESTION: 32

The dimensional formula for the modulus of rigidity is

Solution:
QUESTION: 33

For which property are electrons used in an electron microscope?

Solution:
QUESTION: 34

16 tunning forks are arranged in the order of increasing frequencies. Any two successive forks give 8 beats per sec when sounded together. If the frequency of the last fork is twice the first, then the frequency of the first fork is

Solution:
QUESTION: 35

The K.E. acquired by a mass m in travelling a certain distance d. starting from rest, under the action of a constant force is directly proportional to

Solution:
QUESTION: 36

The compound which can form intramolecular hydrogen bond is

Solution:
QUESTION: 37

In which of the following reactions, both oxidised and reduced forms of the same compound are obtained?

Solution:
QUESTION: 38

The number of π -bonds in the product formed by passing acetylene through dil-H2SO4 containing mercuric sulphate is

Solution:
QUESTION: 39

Which metal salt gives a violet coloured bead in the borax bead test?

Solution:
QUESTION: 40

Benzene is a monocyclic compound. It is armoatic because it contains

Solution:
QUESTION: 41

The energy of hydrogen atom in its ground state is -13.6 eV. The energy of the level corresponding to the quantum number n=5 is

Solution:
QUESTION: 42

1 mol of CH₄ contains

Solution:
QUESTION: 43

Which of the following food stuffs contains nitrogen?

Solution:
QUESTION: 44

Pi-bonds do not alter the shape, but merely shorten the

Solution:

A carbon-carbon double bond consists of one sigma bond and one pi bond. This double bond is stronger than a single covalent bond (599 kJ/mol for C=C vs. 348 kJ/mol for C—C) and also shorter with an average bond length of 1.33 Angstroms (133 pm).

QUESTION: 45

The acid showing salt like character in aqueous solutions is

Solution:
QUESTION: 46

Which of the following is paramagnetic species?

Solution:
QUESTION: 47

The enthalpy of hydrogenation of cyclohexene is -119.5 KJ mol-1 if resonance energy of benzene is -150.4 KJ mol-1,its enthalpy of hydrogenation would be

Solution:
QUESTION: 48

The state of equilibrium refers to

Solution:
QUESTION: 49

The rate of a first order reaction is 1.5 X 10-2 mol-L-1-min-1 at 0.5M concentration of the reactant. The half -life of the reaction is

Solution:
QUESTION: 50

Identify the correct statement regarding entropy

Solution:
QUESTION: 51

Parathion is

Solution:
QUESTION: 52

The IUPAC name of acraldehyde is

Solution:
QUESTION: 53

The I.P. of an element on going from left to right in a period

Solution:

As we move from left to right in a period, the ionisation potential increases with increasing atomic numbers. This is because across a period the nuclear charge increases though the principal quamtum number of the valence shell remains the same. As a result, the valence electrons are more and more tightly held by the nucleus. Consequently, more energy is needed to remove the electrons and hence ionisation potential keeps on increasing.

QUESTION: 54

The electroplating with chromium is undertaken because

Solution:
QUESTION: 55

The gas molecules have rms velocity of its molecules as 100 m/s. What is its average velocity ?

Solution:
QUESTION: 56

Crude naphtha is a mixture of

Solution:
QUESTION: 57

Which is the strongest Lewis base ?

Solution:
QUESTION: 58

Only two isomeric monochloro derivatives are possible for:

Solution:
QUESTION: 59

1 g of radioactive element reduces to 125 mg after 24 hours. Half life of isotope is

Solution:
QUESTION: 60

Iodoform is formed on warming l₂ and NaOH with

Solution:
QUESTION: 61

Polymerisation in which two or more chemically different monomers take part is called

Solution:
QUESTION: 62

Which group decreases acidic nature of phenol?

Solution:
QUESTION: 63

The best method for the separation of napthalene and benzoic acid from their mixture is :

Solution:
QUESTION: 64

Semiconductors are derived from compounds of

Solution:
QUESTION: 65

10 ml. of N-HCl, 20 ml of N/2 H₂SO₄ and 30 ml of N/3 HNO₃ are mixed together and volume made to one litre. The normality of the resulting solution is

Solution:
QUESTION: 66

IdentifyX in the sequence given below : Solution:
QUESTION: 67

In acidic medium, one mole of MnO₄- accepts how many moles of electrons in a redox process ?

Solution:
QUESTION: 68

In an antifluorite structure, cations occupy

Solution:
QUESTION: 69

If 75.5g of a metallic chloride contains 35.5g of chlorine, then the equivalent weight of the metal is

Solution:
QUESTION: 70

In Faraday-Tyndall effect the colloidally suspended particles

Solution:
QUESTION: 71

Tyloses are thickenings seen in

Solution:

A bladder like structure are formed during the secondary growth and blocks the continuity of the secondary growth and blocks the continuity of the conducting system. It is known as tyloses which found in xylem cells and ray parenchyma.

QUESTION: 72

Breeding place of Flaming (Hansawar) in India is

Solution:
QUESTION: 73

Number of linkage groups in Pisum Sativum is

Solution:
QUESTION: 74

Which of these can dissolve a blood clot?

Solution:
QUESTION: 75

Causative agent of syphilis is :

Solution:
QUESTION: 76

The alimentary tube is around _____ meters long.

Solution:
QUESTION: 77

The Indian soils are generally poor in

Solution:
QUESTION: 78

Which of the following animal is the most economical 'Meat making machine'?

Solution:
QUESTION: 79

Neanderthal man lived in

Solution:
QUESTION: 80

As a result of oblique cleavage the symmetry produced is known as :

Solution:
QUESTION: 81

During ovulation, a(n) _____________ is released from the ovary.

Solution:
QUESTION: 82

Which of the following lies between replication and translocation ?

Solution:
QUESTION: 83

DNA replication is

Solution:
QUESTION: 84

A cross involving F1 hybrid and a double recessive parent is called :

Solution:
QUESTION: 85

Percentage of heterozygous individuals obtained from selfing Rr individuals is :

Solution:
QUESTION: 86

Receptors of pressure present in deep layers of skin are

Solution:
QUESTION: 87

Chemical knives/molecular scissors of DNA are

Solution:
QUESTION: 88

According to the sliding filament theory of muscle contraction

Solution:
QUESTION: 89

Involuntary muscular contraction is called

Solution:
QUESTION: 90

The distribution of sodium and potassium ions during resting potential is maintained by

Solution:
QUESTION: 91

The correct sequence for the transmission of a nerve impulse along a neuron is
1. Potassium gates open.
2. Sodium ions diffuse into neuron.
3. Resting potential.
4. Recovery

Solution:
QUESTION: 92

The primitive atmosphere of earth contained water vapours, hydrogen, ammonia and

Solution:
QUESTION: 93

The process of photosynthesis is

Solution:
QUESTION: 94

The plants respond to photoperiods due to the presence of

Solution:
QUESTION: 95

Hydrophytes are able to float due to presence of

Solution:
QUESTION: 96

Which of the following is the most dangerous metal pollutant of automobile exhaust?

Solution:
QUESTION: 97

Which of the following store sperm cells and eliminate those that have major genetic defects?

Solution:
QUESTION: 98

Occasionally, three polar bodies are found clinging to the mature ovum. One came from the unequal division of the ovum; but what about the other two?

Solution:
QUESTION: 99

Which one requires oxygen

Solution:
QUESTION: 100

Use the following information to answer the question :
1. Alveoli
2. Bronchi
3. Trachea
4. Bronchioles
What is the order in which air passes through these structures during inhalation?

Solution:
QUESTION: 101

The number of bones in appendicular skeleton are

Solution:
QUESTION: 102

Cucurbitaceae has plant yielding a vegetable fruits what is the position of this family in Bentham and Hooker classification-

Solution:
QUESTION: 103

The antibiotic used in Lederberg's replica plating experiment was

Solution:
QUESTION: 104

Inter-articulated disc is found in

Solution:
QUESTION: 105

The tonicity of the tissue surrounding the loop of Henle is vital to the maintenance of blood volume because it

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