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AIIMS Full Mock Test 18 - NEET MCQ


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30 Questions MCQ Test - AIIMS Full Mock Test 18

AIIMS Full Mock Test 18 for NEET 2024 is part of NEET preparation. The AIIMS Full Mock Test 18 questions and answers have been prepared according to the NEET exam syllabus.The AIIMS Full Mock Test 18 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for AIIMS Full Mock Test 18 below.
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AIIMS Full Mock Test 18 - Question 1

In a pure silicon (ni = 1016/m3) crystal at 300 K, 1021 atoms of phosphorus are added per cubic meter. The new hole concentration will be

AIIMS Full Mock Test 18 - Question 2

In transistor, forward bias is always smaller than the reverse bias. The correct reason is

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AIIMS Full Mock Test 18 - Question 3

In a given circuit as shown the two input waveform A and B are applied simultaneously. The resultant waveform Y is

AIIMS Full Mock Test 18 - Question 4

In circuit in following fig. the value of Y is

AIIMS Full Mock Test 18 - Question 5

In the following circuit, a voltmeter V is connected across a lamp L. What change would occur in voltmeter reading if the resistance R is reduced in value.

AIIMS Full Mock Test 18 - Question 6

In the study of transistor as an amplifier, if a = Ic / Ie and b = Ic / Ib, where Ic ,Ib and Ie are the collector, base and emitter currents, then

AIIMS Full Mock Test 18 - Question 7

For the given combination of gates, if the logic state of inputs A, B, C are as follows A = B = C = 0 and A = B = 1, C = 0 then the logic states o output D are

AIIMS Full Mock Test 18 - Question 8

Which logic gate is represented by the following combination of logic gates

AIIMS Full Mock Test 18 - Question 9

In the diagram, the input is across the terminals A and C and the output is across the terminals B and D, then the output is

AIIMS Full Mock Test 18 - Question 10

The phase difference between input and output voltages of a CE circuit is

AIIMS Full Mock Test 18 - Question 11

Which of the following is true

AIIMS Full Mock Test 18 - Question 12

The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that

AIIMS Full Mock Test 18 - Question 13

Which of the following statements is not true

AIIMS Full Mock Test 18 - Question 14

The dominant mechanisms for motion of charge carriers in forward and reverse biased silicon P-N junctions are

AIIMS Full Mock Test 18 - Question 15

Which one is reverse-biased

AIIMS Full Mock Test 18 - Question 16

Consider the following statements A and B and identify the correct choice of the given answers
A: The width of the depletion layer in a P-N junction diode increases in forwards bias
B : In an intrinsic semiconductor the fermi energy level is exactly in the middle of the forbidden gap

AIIMS Full Mock Test 18 - Question 17

Which of the following ray diagram show physically possible refraction

      

AIIMS Full Mock Test 18 - Question 18

When the rectangular metal tank is filled to the top with an unknown liquid, as observer with eyes level with eyes level with the top of the tank can just see the corner E; a ray that refracts towards the observer at the top surface of the liquid is shown. The refractive index of the liquid will be

AIIMS Full Mock Test 18 - Question 19

PQR is a right angled prism with other angles as 60º a d 30º. Ref ractive index of prism is 1.5 PQ has a thin layer of liquid. Light falls normall on the face PR. For total internal reflection, maximum refractive index of liquid is

AIIMS Full Mock Test 18 - Question 20

When a ray is refracted from one medium to another, th wavelength changes from 6000 Å to 4000 Å. The critical angle for the interface will be

AIIMS Full Mock Test 18 - Question 21

Two thin lenses, when in contact, produce a combination of power + 10 D. When they are 0.25 m apart, the power reduces to + 6D. The focal lengths of the lenses (in m) are

AIIMS Full Mock Test 18 - Question 22

The plane faces of two identical plane convex lances, each with focal length f are pressed against each other using an optical glue to forma usual convex lens. The distance from the optical center at which an object must be placed to obtain the image same as the size if object is

AIIMS Full Mock Test 18 - Question 23

A parallel beamof light emerges fromthe opposite surface of the sphere when a point source of light lies at the surface of the sphere. The refractive index of the sphere is

AIIMS Full Mock Test 18 - Question 24

A thin rod of 5 cmlength is kept along the axis of a concave mirror of 10 cm focal length such that its image is real and magnified and one end touches the rod. Its magnification will be

AIIMS Full Mock Test 18 - Question 25

A lens when placed on a plane mirror then object needle and its image coincide at 15 cm. The focal length of the lens is

AIIMS Full Mock Test 18 - Question 26

Flint glass prism is joined by a crown glass prism to produce dispersion without deviation. The refractive indices of these for mean rays are 1.602 and 1.500 respectively. Angle of prism of flint prism is 100, then the angle of prism for crown prism will be

AIIMS Full Mock Test 18 - Question 27

An astronomical telescope has an angular magnification of magnitude 5 for distant objects. The separation between the objective and the eye-piece is 36 cm and the final image is formed at infinity. The focal length f0 of the objective and fe of the eye-piece are

AIIMS Full Mock Test 18 - Question 28

The magnifying power of compound microscope in terms of the magnification m0 due to objective and magnifying power mE by the eye-piece is given by

AIIMS Full Mock Test 18 - Question 29

With a simple microscope, if the final image is located at the least distance of distinct vision (i.e., D) from the eye placed close to the lens, then the magnifying power is

AIIMS Full Mock Test 18 - Question 30

If in a Young's double slit experiment, the slit distance is 3 cm, the separation between slits and screen is 70cm and wavelength of light is 1000 Å , then fringe width will be

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