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 1481:
For a pear-shaped conductor shown above, the concentration of charge on the outside is highest at?
Options:
A) X
B) Z
C) Y
D) K
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The correct answer is A .
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Question 1482: In a gas experiment, if the volume of the gas is plotted against the reciprocal of the pressure, the unit of the slope of the resulting curve is
Options:
A) force
B) temperature
C) power
D) work
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The correct answer is D .
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Question 1483: Convert 45°C to kelvin
Options:
A) 318K
B) 250K
C) 184K
D) 120K
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The correct answer is A .
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Question 1484:
During the transformation of matter from the solid to the liquid state, the heat supplied does not produce a temperature increase because
Options:
A) the heat energy is quickly conducted away
B) the heat capacity has become very large as the substance melts
C) the heat gained is equal to the heat lost by the substance
D) all the heat is used to break the bonds holding the molecules of the solid together
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The correct answer is D .
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Question 1485: When a box of mass 45kg, is given an initial speed of 5ms-1 it slides along a horizontal floor a distance of 3m before coming to a rest. what is the coefficient of kinetic friction between the box and the floor? (G = 10ms-2)
Options:
A)
B)
C)
D)
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The correct answer is B .
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Question 1486: The temperature at which the water vapour present in the air is just sufficient to saturate it is called the
Options:
A) ice point
B) boiling point
C) steam point
D) dew point
E) saturation point
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The correct answer is D .
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Question 1487: A pressure cooker saves both time and fuel in cooking because inside the cooker, the
Options:
A) boiling point of water is raised
B) pressure is constant
C) heat is completely trapped
D) temperature is evenly distributed
E) volume of steam varies
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The correct answer is A .
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Question 1488: A short response to time is obtained in liquid-in-glass thermometer when the
Options:
A) bulb is large and thick-walled
B) stem is long and thin
C) bulb is small and thicked-walled
D) liquid is of high density and the bore is large
E) bulb is thin-walled and the liquid is a good conductor of heat
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The correct answer is E .
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Question 1489: If the angle between two vector P and Q is Oo, the vectors are said to
Options:
A) intersect at the angle 45o
B) intersect at the angle 60o
C) be parallel
D) be perpendicular
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The correct answer is C .
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Question 1490:
The slope of the straight line displacement-time graph indicates?
Options:
A) distance traveled
B) uniform velocity
C) uniform acceleration
D) uniform speed
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The correct answer is B .