MDCAT Physics MCQ's Test With Answers

MDCAT Physics MCQ's Test

Sr. # Questions Answers Choice
1 Yttrium barium copper oxide (Yba2Cu3O7) becomes superconductor at 163 K -100 °C both and b None of these
2 Which of the given elements is a diamagnetic material Antimony Bismuth Copper All of these
3 1st superconductor was discovered in year 1890 1930 1895 1911
4 To get p-type semiconductor we add impurity from 3<sup>rd</sup> group 4<sup>th</sup> group 5<sup>th</sup> group 6<sup>th</sup> group
5 If stress is increased beyond the elastic limit and change in solid is permanent this behaviour is called Elasticity Plasticity Conductivity Insulator
6 Reciprocal of bulk modulus is called Shear modulus Compressibility Young s modulus None
7 Which of the given strains can also be written as tan θ Compressional strain Volumetric strain Shear strain All of these
8 Material with smaller hystersis loop area are best for the construction of Transformer Core of transformer D.C motor Rectifier
9 Domains are present only in Diamagnetic material&nbsp; Para magnetic material Ferromagnetic material All of these
10 Solids having partially field conduction bands are Insulator Semiconductor Super conductor Semi conductor
11 The dimension of elastic modulus ML<sup>-1</sup>T<sup>2</sup> MLT<sup>2</sup> ML<sup>-1</sup>T<sup>2</sup> MLT<sup>3</sup>
12 Hooks law hols within Proportional limit Elastic limit Plastic limit None
13 Which of the following has no dimension Stress Strain Elastic modulus Both strain and elastic modulus
14 Those solid which breaks soon after crossing the elastic limit are called Amorphous Glassy solid Crystalline solid Brittle
15 Which of the following is not crystalline solid Zinc Copper Sodium chloride None of these
16 Solids which have no regular atomic structure are called Crystalline solid elastic solid Glassy solid All of these
17 Identify the incorrect statement The distance between the objective and eye-piece is 16.02 cm The angular magnification of the planet is 800 The image of the planet is inverted The objective is larger than the eye-piece
18 The angle with the horizontal at which an underwater swimmer will see the setting sun is 91° 32° 49° 69°
19 If a glass slab is placed in the path of a converging beam of light The point of convergence of light Moves away from the glass slab Moves towards the glass slab Remains at the same point Moves straight
20 Which of the following radiation will be focused farthest from a convex lens X - rays γ - rays Microwaves β - rays
21 Which of the following colors will have minimum critical angle when light passes from glass to air Red Blue yellow Orange
22 Light traveling through vacuum enters water which characteristic of light does not charge Velocity Frequency Wavelength Amplitude
23 In compound microscope the focal length of eye piece is Large Small Same as objective None of these
24 If focal length of objective is increased Magnifying power of compound microscope decreased Magnifying power of astronomical telescope increases The diameter of the objective lens None of these
25 An optical instrument used to see very far off objects is called Telescope Camera lens Microscope Spectrometer
26 A simple astronomical telescope consists of Two convex lenses Three convex and one cocave Two concave lens None of these
27 The distance between the objective and eye-piece of a telescope in normal adjustment is <i>f/</i><sub>0</sub>-<i>f<sub>e</sub></i> <i>f</i><sub>0</sub>+<i>f<sub>e</sub></i> <i>2f<sub>e</sub></i>-<i>f<sub>e</sub></i> None of these
28 The magnifying power of an instrument is expressed in Radians Degrees No units None of these
29 The final image obtained by astronomical telescope is Inverted w.r.t object Magnified Virtual All of them
30 The speed of light in vacuum or in air is 3 x 10<sup>10</sup> <i>m ! s</i> 3 x 10<sup>9</sup>&nbsp;<i>m ! s</i> 3 x 10<sup>8</sup>&nbsp;<i>m ! s</i> 3 x 10<sup>7</sup>&nbsp;<i>m ! s</i>
31 The speed at which light travels within the material depends upon Refractive index of medium Wavelength Frequency Intensity
32 Optical fibres are of Five type Two type Three type None of these
33 Multimode graded index fibre core has diameter of 40-200&nbsp;μm 50-1000&nbsp;μm 50-150&nbsp;μm 50-300&nbsp;μm
34 How many phone calls can be carried by single mode step index fibre 25000 96000 14000 21000
35 Single mode step index fibre has a very thin core of about diameter 5.5&nbsp;μm 9.5&nbsp;μm 5.0&nbsp;μm All of these
36 Multimode step index fibre has a core of relatively larger diameter such is 125 μm 175 μm 50 μm 100 μm
37 There will be no change in _______ of light entering glass Velocity Frequency Direction Wavelength
38 We can use Fibre optics system for Image transmitting Word processing Image processing and recelving All
39 Who gave the corpuscular nature of light Einstein Newton Maxwell Thomas young
40 According to Young s experiment the distance between two adjacent bright fringes of blue light is _____ than for oranges light Less Maximum Equal May be less may be greater depending upon slit spacing
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