VITEEE Physics Test - 10


40 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE Physics Test - 10


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This mock test of VITEEE Physics Test - 10 for JEE helps you for every JEE entrance exam. This contains 40 Multiple Choice Questions for JEE VITEEE Physics Test - 10 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE Physics Test - 10 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE Physics Test - 10 exercise for a better result in the exam. You can find other VITEEE Physics Test - 10 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

In a step-up transformer the turn ratio is 1:10. A resistance of 200 ohm connected across the secondary is drawing a current of 0.5 amps. What is the primary voltage and current

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QUESTION: 2

Capacity of a conductor depends upon

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QUESTION: 3

An electron - volt is the unit of

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QUESTION: 4
Consider telecommunication through optical fibres. Which of the following statements is not correct
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QUESTION: 5
Phenomenon of electrolysis was first given by
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QUESTION: 6

A charged particale accelerated through a P.D. of 100 volt passes throught the uniform electric and magnetic fields so as to experience no deflection. If E = 15 x 106 V m-1 and B = 5 x 103 T , then the specific charge of the particle is

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QUESTION: 7
A current is passed through two coils connected in series. The potential difference across the first coil is 3 V and that of the second coil is 4.5 V. If the first coil has a resistance of 2Ω, then resistance of the second coil is
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QUESTION: 8

There is a current of 1.344 amp in a copper wire whose area of cross-section normal to the length of the wire is 1 mm2. If the number of free electrons per cm3 is 8.4x1022 ,then the drift velocity would be

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QUESTION: 9
The resistance of a discharge tube is
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QUESTION: 10
In a given network, each resistance has value of 6 . The point X is connected to point A by a copper wire of negligible resistance and point Y is connected to point B by the same wire. The effective resistance between X and Y will be
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QUESTION: 11
When yellow light is incident on a surface, no electrons are emitted while green light can emit. If red light is incident on the surface, then
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QUESTION: 12
A generator at a utility company produces 100 A of current at 4000 V. The voltage is stepped up to 240000 V by a transformer before it is sent on a high voltage transmission line. The current in transmission line is
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QUESTION: 13
In T.V. broadcasting both picture and sound are transmitted simultaneously. In this
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QUESTION: 14
If the electric flux entering and leaving an enclosed surface respectively is φ₁ and φ₂, the electric charge inside the surface will be
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QUESTION: 15

Power delivered by the source in the circuit is maximum, when

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QUESTION: 16
The average e.m.f. induced in a coil in which a current changes from 0 to 2 A in 0.05 s is 8 V. The self inductance of the coil is
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QUESTION: 17

Potential energy of two equal positive charges 1 μ C each held 1 m apart in air is

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QUESTION: 18

A spherical shell of radius a with charge Q is expanded to radius b. The work done by the electric force in the process is

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QUESTION: 19

Calculate the capacitance C of the capacitor if C0  is the capacitance without dielectric

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QUESTION: 20

An electric dipole has the magnitude of its charge as q, and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, then force acting on it and its potential energy are respectively

Solution:


The situation is shown in adjacent figure, P → is parallel to E →
∴ U = - pE cos 0 = - pE = Minimum
and the net force on the dipole is zero

QUESTION: 21

The nuclear size is measured in the units of

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QUESTION: 22
A work of 100 J is done in moving a charge of -5C from infinity to a particular point in an electrostatic field. The potential of this point is
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QUESTION: 23

Which of the following particles will describe the smallest circle when projected with the same velocity perpendicular to the magnetic field ?

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QUESTION: 24

The first atomic reactor was constructed by

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QUESTION: 25

The mass defect in a particular nuclear reaction is 0.3 grams. The amount of energy liberated in kilowatt hours is (velocity of light = 3 x 108 ms-1).

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QUESTION: 26
When ultraviolet rays are incident on metal plate then photoelectric effect does not occur, it occurs by incidence of
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QUESTION: 27

The photoelectric threshold of a certain metal is 3000 Å. If the radiation of 2000 Å is incident on the metal

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The photoelectrons will be emitted because wavelength of incident radiation is less than threshold wavelength (λ < λ0)

QUESTION: 28

The radius of curvature of a thin plno-convex lens is 10 cm (of curved surface) and the refractive index is 1.5. If the plane surface is silvered, then the focal length will be

Solution:

The lens with silvering on the plane surface will behave as a concave mirror of radius of curvature R = 20 cm. Hence, its focal length is 

QUESTION: 29

Light is incident on a glass plate at an angle of 600. If reflected and refracted rays are mutually perpendicular, then refractive index of the glass plate is

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QUESTION: 30

Zener breakdown will occur if

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QUESTION: 31

The two diodes A and B are biased as shown

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QUESTION: 32

A piece of Aluminium and Germanium each are cooled from T1K to T2K. The resistance of

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QUESTION: 33

Intrinsic semiconductor is electrically neutral. Extrinsic semiconductor having large number of current carriers would be

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QUESTION: 34

Depletion layer consists of

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QUESTION: 35

To obtain a p-type germanium semiconductor, it must be doped with

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In p-type germanium semiconductor, it must be doped with a trivalent impurity atom
Therefore germanium must be doped in indium

QUESTION: 36
To a germanium sample, traces of gallium are added as an impurity. The resultant sample would behave like
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QUESTION: 37

The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young's double-slit experiment, is

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d sin θ = nλ

QUESTION: 38

The wave theory of light was given by

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QUESTION: 39

If the two slits in Young's experiment have width ratio 1:4, the ratio of intensity at maxima and minima in the interference pattern in

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QUESTION: 40
In young's double slit experiment, three light, blue, yellow and red are used successively. For which colour, will the fringe width be maximum?
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