Paper no.4 PHYSICS

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Created on By buzzerkings

MDCAT PHY PAPER 4

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120. In Benoulli's equation the term 1/2ρv^2 is called:

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119. The X-rays consist of:

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118. The target of X-ray tube is made of which metal?

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117. Which one of the following gas is the lasing or active medium in the laser tube?

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116. The atom is excited to an energy level E₁ from its ground state energy level Eo the wavelength of the radiations emitted is:

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115.  The shadow of the bones in X-rays photographic film appears lighter than the surrounding flesh due to: 

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114. The force acting on current carrying conductor will be maximum if the angle between magnetic field and conductor is:

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113. If we doubled at the parameters of the force acting on current carrying conductor and 𝛉= 90° then magnetic force becomes:

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112.  'F' is maxmum force acting on a conductor. Now if we change the direction of conductor by making an angle of 45° with magnetic field then the force becomes:

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111. Total resistance between 'A' and 'B' in the given circuit is:

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110. Resistance between two opposite faces of square thin film of area 1mm^2 having thickness of 1μm if resistivity of material is 10^-6Ω will be:

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109.  If the length, width and separation between the plates of a parallel plate capacitor is doubled then its capacitance becomes:

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108.  Which one of the following is the Boolean expression of NAND gate?

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107. If a turbine is working as a heat engine and takes that from hot body (427°) and exhausts into body at 77°C then what is the possible efficiency?

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106.  Which relation exactly described the isothermal process:

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105.  The rapid escape of air from a burst tyre is an example of: 

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104. The relation 'PV = nRT' shows which law of physics?

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103. The relation NA  1.38x10^-23 JK-1 in a gas law is known as: 

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102.  The wire made of copper belong to which specific kind of material?

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101.  The ratio of applied stress to the volumetric strain is called:

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100. Tuning a radio is an example of:

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99. Frequency audible to human hearing lies in the range:

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98. The red shift measurement of Doppler effect of galaxies indicate that the universe is:

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97. Resonance occurs when the driving frequency is:

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96. Using the relation for the magnifying power i.e, M = 1 + d/f, If f = 5cm and d = 25cm then M will be:

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95. The minimum distance from the eye at which an object appears to be distinct is:

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94. When fluid is incompressible, the quantity is constant is:

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93. If we double the moment arm the value of torque becomes:

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92.  A man in a elevator ascending with an acceleration with conclude that his weight is:

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91. The unit for electric charge is Coulomb and one Coulomb in terms of base unit is equalvent to:

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