Uttarakhand Lab Assistant (Physics) Post Code – 047 Exam Paper 2016

81. As we go from the equator to the poles, the value of g –
(A) No change
(B) Decreases
(C) Increases
(D) None of these

82. Weight of a body is maximum at—
(A) Moon
(B) Poles of earth
(C) Both A & B
(D) None of these

83. What is the intensity of gravitational field at the centre of spherical shell –
(A) Zero
(B) GM/r²
(C) g
(D) None of these

84. The escape velocity of a projectile from the earth is approximately—
(A) 11.2 m/sec
(B) 112 km/sec
(C) 11.2 km/sec
(D) None of these

85. The escape velocity of a particle of mass m varies as–
(A) m²
(B) m
(C) m°
(D) None of these

86. According to Hooke’s law force is proportional
(A) x
(B) 1/x
(C) 1/x⁴
(D) None of these

87. Stress to strain ratio is equivalent to
(A) Fund number
(B) Modulus of elasticity
(C) Poisson ratio
(D) None of these

88. Young’s modulus of perfectly rigid body material is
(A) Zero
(B) 1 × 10¹⁰ N/m²
(C) Infinite
(D) None of these

89. Which is correct relation
(A) y<σ
(B) y>σ^2/2
(C) y=σ
(D) None of these

90. Modulus of rigidity of a liquid–
(A) Zero
(B) Infinite
(C) ½
(D) None of these

91. Dielectric constant for a metal is—
(A) Zero
(B) Infinite
(C) 1
(D) None of these

92. Charge on a-particle is—
(A) 4.8 × 10^-20 C
(B) 6.4 × 10^-19 C
(C) 1.6 × 10^-21 C
(D) None of these

93. The surface charge density (in c/m2) of the earth is about—
(A) 10^-9
(B) –10⁹
(C) 10⁹
(D) None of these

94. In the given circuit, the potential of the point E is–

(A) Zero
(B) – 8 ve
(C) ¾ V
(D)- 4/3 v

95. In the given circuit the equivalent resistance between A & B

(A) 3.12 Ω
(B) 1.56 Ω
(C) 6.2 Ω
(D) None of these

96. Consider the circuit shown in the Figure. The current I3 is equal to—

(A) 5 amp
(B) – ⅚ amp
(C) 6 amp
(D) None of these gam

97. One kilowatt hour is equal to –
(A) 36 × 10³ Joule
(B) 10³ Joule
(C) 36 × 10⁵ Joule
(D) None of these

98. What is immaterial for an electric fuse wire-
(A) Its specific resistance
(B) Its radius
(C) Both A & B
(D) Its length

99. If current in an electric bulb changes by 1% then the power will change by
(A) 1%
(B) 2%
(C) 4%
(D) ½ %

100. The value of internal resistance of an ideal cell is—
(A) Zero
(B) Infinite
(C) 0.5 Ω
(D) None of these

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