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# VITEEE Physics Test - 3

## 40 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE Physics Test - 3

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This mock test of VITEEE Physics Test - 3 for JEE helps you for every JEE entrance exam. This contains 40 Multiple Choice Questions for JEE VITEEE Physics Test - 3 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE Physics Test - 3 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE Physics Test - 3 exercise for a better result in the exam. You can find other VITEEE Physics Test - 3 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
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QUESTION: 2

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QUESTION: 3

### A photon of energy 2. 5eV and wavelength λ falls on a metal surface and the ejected electrons have a velocity 'V' . If the wave length λ of incident light is decreased by 20%, the velocity of emitted electrons is doubled, then the work function of the metal is

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QUESTION: 4

Current flows in the semi-conductors through

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QUESTION: 5

A 2μ F capacitor is charged to 100 volt and then its plates are connected by a conducting wire. The heat produced is

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QUESTION: 6

A 4 V battery of internal resistance 1 Ω sends a current through a 3 Ω resistor. The terminal potential difference is

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QUESTION: 7

x g of Ag is deposited by passing 4 A of current for 1 hour. How many gram of Ag will be deposited by passing 6 A for 40 min?

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QUESTION: 8

The maximum current that flows through a fuse wire before it blows out varies with its radius r as

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QUESTION: 9

Which of the following is a non-ohmic resistor?

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QUESTION: 10

Consider telecommunication through optical fibres. Which of the following statements is not correct

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QUESTION: 11

When a proton is accelerated with 1 volt potential difference, then its kinetic energy is

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QUESTION: 12

What is increased in a step-down transformer

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QUESTION: 13

A conductor rod of length L rotates with angular speed ω in a uniform magnetic field of induction B which is perpendicular to its motion. The induced e.m.f developed between the two ends of the rod is

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QUESTION: 14

The induced e.m.f. produced in the primary and secondary coils is 2 mV and 5 mV respectively. If the rate of change of current is 20 A-s-1, then coefficient of mutual induction of the secondary coil is

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QUESTION: 15

Which of the following rays are not electromagnetic wave?

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QUESTION: 16

A sphere S1 of radius r1 encloses a total charge Q. If there is another concentric sphere S1 of radius r2 > r1 and there be no additional charges between S1 and S2, the ratio of electric flux through S1 and S2 is

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QUESTION: 17

An electron of charge e coulomb passes through a potential difference of V volt. Its energy in joule will be

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QUESTION: 18

Equal charges are given to two conducting spheres of different radii. The potential will

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QUESTION: 19

An electric dipole consists of two opposite charges of magnitude  +- q seperated by 2a. When the dipole is placed in uniform electric field E, to have minimum potential energy, then dipole moment p makes which the following angle with E

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QUESTION: 20

The capacitance of a parallel plate capacitor is 10 μF when distance between its plates is 8 cm. If distance between the plates is reduced to 4 cm, its capacitance will be

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QUESTION: 21

A cyclotron can not accelerate

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QUESTION: 22

The difference between the mass of a nucleus and the total mass of the constituents is its

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QUESTION: 23

A body of mass 1g and carrying a charge 10-8 C passes from two points P and Q. P and Q are at electric potentials 600V and 0V respectively. The velocity of the body at Q is 20 cm s-1 . Its velocity in ms-1 at P is

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QUESTION: 24

A heavy nucleus at rest breaks into two fragments which fly off with velocities 8:1. The ratio of radii of the fragments is

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QUESTION: 25
Which of the following cannot be emitted by radioactive substances during their decay?
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QUESTION: 26

Stopping potential for photoelectrons

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QUESTION: 27

When the photons of energy hv fall on a photo-sensitive surface (work function hv₀) electrons are emitted from the metallic surface. This is known as photoelectric effect. The electron coming out of the surface have a kinetic energy. Then it is possible to state that

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QUESTION: 28

The magnifying power of a simple microscope M is given by

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QUESTION: 29
If a half wave rectifier is used to convert 50HZ a.c into d.c number of pulses present in the rectified output voltage is
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QUESTION: 30

A prism is made up of material of refractive index √ 3 . The angle of the prism is A. If the angle of minimum deviation is equal to the angle of the prism, then the value of A is

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The region near the junction of p - n diode where there are no charge carriers is called

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QUESTION: 32

In a properly biased transistor

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QUESTION: 33

In P-type semiconductor, there is

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QUESTION: 34

A hole in a p-type semiconductor is

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QUESTION: 35
The electrical resistance of the following decreases with rise in temperature
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QUESTION: 36

Three semi-conductors are arranged in the increasing order of their energy gap as follows. The correct arrangement is

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QUESTION: 37

When distance between source of light and observer decreases, then the apparent frequency of light

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QUESTION: 38

Laser light is considered to be coherent as it consists of

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QUESTION: 39

When two coherent monochromatic light beams of intensities I and 4I are superimposed, the ratio between maximum and minimum intensities in the resultant beam is

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QUESTION: 40

Both light and sound waves produce diffraction. It is more difficult to observe the diffraction with light waves because

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