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# VITEEE Physics Test - 10

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

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VITEEE Physics Test - 10 - 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

VITEEE Physics Test - 10 - Question 2

### Capacity of a conductor depends upon

VITEEE Physics Test - 10 - Question 3

### An electron - volt is the unit of

VITEEE Physics Test - 10 - Question 4
Consider telecommunication through optical fibres. Which of the following statements is not correct
VITEEE Physics Test - 10 - Question 5
Phenomenon of electrolysis was first given by
VITEEE Physics Test - 10 - 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

VITEEE Physics Test - 10 - Question 7

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

VITEEE Physics Test - 10 - Question 8
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
VITEEE Physics Test - 10 - Question 9
The resistance of a discharge tube is
VITEEE Physics Test - 10 - Question 10
In a given network, each resistance has value of 6 $\text{Ω}$. 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
VITEEE Physics Test - 10 - 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
VITEEE Physics Test - 10 - 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
VITEEE Physics Test - 10 - Question 13
In T.V. broadcasting both picture and sound are transmitted simultaneously. In this
VITEEE Physics Test - 10 - 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
VITEEE Physics Test - 10 - Question 15

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

VITEEE Physics Test - 10 - 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
VITEEE Physics Test - 10 - Question 17

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

VITEEE Physics Test - 10 - 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

VITEEE Physics Test - 10 - Question 19

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

VITEEE Physics Test - 10 - 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

Detailed Solution for VITEEE Physics Test - 10 - Question 20

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

VITEEE Physics Test - 10 - Question 21

The nuclear size is measured in the units of

VITEEE Physics Test - 10 - Question 22

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

VITEEE Physics Test - 10 - Question 23
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
VITEEE Physics Test - 10 - Question 24

The first atomic reactor was constructed by

VITEEE Physics Test - 10 - 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).

VITEEE Physics Test - 10 - Question 26
When ultraviolet rays are incident on metal plate then photoelectric effect does not occur, it occurs by incidence of
VITEEE Physics Test - 10 - Question 27

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

Detailed Solution for VITEEE Physics Test - 10 - Question 27

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

VITEEE Physics Test - 10 - Question 28

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

VITEEE Physics Test - 10 - Question 29

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

VITEEE Physics Test - 10 - Question 30

Depletion layer consists of

VITEEE Physics Test - 10 - Question 31
To a germanium sample, traces of gallium are added as an impurity. The resultant sample would behave like
VITEEE Physics Test - 10 - Question 32

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

Detailed Solution for VITEEE Physics Test - 10 - Question 32

d sin θ = nλ

VITEEE Physics Test - 10 - Question 33

The wave theory of light was given by

VITEEE Physics Test - 10 - Question 34

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

Detailed Solution for VITEEE Physics Test - 10 - Question 34

VITEEE Physics Test - 10 - Question 35
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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