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 1001:
Which of these is observed when air is pumped out of a discharge tube without lowering its pressure
Options:
A) the conductivity of the air increases
B) the conductivity of the air decreases
C) conduction does not occur
D) spark are produced
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The correct answer is C .
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Question 1002: If the velocity ratio of a machine is 5. What is its ratio of x and y?
Options:
A) 2 : 5
B) 1 : 5
C) 5 : 1
D) 3 : 1
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The correct answer is C .
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Question 1003:

Find the effective resistance in the diagram above
Options:
A) 6 Ω
B) 12 Ω
C) 18 Ω
D) 24 Ω
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The correct answer is D .
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Question 1004:
In a series R-L-C circuit at resonance, the voltages across the resistor and the inductors are 30V and 40V respectively. What is the voltage across the capacitor?
Options:
A) 30V
B) 40V
C) 50V
D) 70V
Show Answer
The correct answer is B .
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Question 1005: An ammeter of resistance 5Ω has a full-scale deflection when a current of 50 mA flows in it. The value of the resistor required to adapt it to measure a current of 5 A is?
Options:
A) 0.25Ω
B) 5.00Ω
C) 19.80Ω
D) 0.05Ω
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The correct answer is D .
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Question 1006:
The relationship between the coefficient of linear expansion and volumetric expansion () is-----------------
Options:
A) =
B) =
C) 3
D) =
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The correct answer is C .
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Question 1007: The force on a current carrying conductor in a magnetic field is greatest when the
Options:
A) conductor makes an angle of 60° with the field
B) force is idependent of the angles between the fields and the conductor
C) conductor is parallel with the field
D) conductor is at right angle with the field
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The correct answer is D .
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Question 1008: A zinc has a heat capacity of 40 J/K, what is the mass of the zinc, given that the specific heat of zinc is 380 J/kg k
Options:
A) 0.11kg
B) 0.12kg
C) 0.13kg
D) 0.14kg
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The correct answer is A .
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Question 1009: A column of air 10.0cm long is trapped in a tube at 27oC. What is the length of the volume at 100oC?
Options:
A) 12.4cm
B) 13.7cm
C) 18.5cm
D) 37.0cm
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The correct answer is A .
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Question 1010: A concave lens of focal length 20cm form an image 1/2 the size of the object. The object distance is
Options:
A) 100cm
B)
C) 60cm
D)
E) None of the above
Show Answer
The correct answer is C .