Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
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Question 1061: The energy contained in a wire when it extended by 0.02m by a force 500 N is
Options:
A) 5J
B) 10J
C) 103J
D) 104
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The correct answer is A .
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Question 1062: If the stress on a wire is 107NM-2 and the wire is stretched from its original length of 10.00 cm to 10.05 cm. The young's modulus of the wire is
Options:
A) 5 . 0 x 104 Nm-2
B) 5 . 0 x 105 Nm-2
C) 2 . 0 x 108 Nm-2
D) 2 . 0 x 109 Nm-2
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The correct answer is D .
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Question 1063: The bond between silicon and germanium is
Options:
A) dative
B) covalent bond
C) trivalent
D) ionic
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The correct answer is B .
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Question 1064:
If an object just begins to slide on a surface inclined at 30ºto the horizontal,the coefficient of friction is?
Options:
A) √3
B)
C)
D)
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The correct answer is D .
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Question 1065: A slight loading of a tuning fork has the effect of
Options:
A) decreasing its amplitude
B) increasing its amplitude
C) decreasing its frequency
D) increasing its frequency
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The correct answer is B .
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Question 1066:
A hydrometer is an instrument formeasuring the
Options:
A) a depth of water of water in a vessel
B) relative density of a liquid by the method of flotation
C) relative density of a liquid by finding the apparent loss in weight
D) relative humidity of the air
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The correct answer is B .
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Question 1067: Which of the following will convert a milliammeter to a voltmeter?
Options:
A) low series resistance
B) low parallel resistance
C) high series resistance
D) high parallel resistance
E) parallel resistance equal to milliammeter resistance
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The correct answer is C .
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Question 1068: An orange fruit drops to the ground from the top of a tree 45m tall. How long does it takes to reach the ground? (g = 10ms-2)
Options:
A) 3.0s
B) 4.5s
C) 6.0s
D) 7.5s
E) 9.0s
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The correct answer is A .
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Question 1069: An object placed on the principle axis of a convex lens of focal length 10m produces a real image of double magnification. The image distance from the lens is
Options:
A) 30cm
B) 25cm
C) 20cm
D) 15cm
E) 10cm
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The correct answer is A .
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Question 1070: Determine the distance between the consecutive antinodes XX if the wavelength is 66cm
Options:
A) 15cm
B) 30cm
C) 60cm
D) 120cm
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The correct answer is B .