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 201: A 12V battery has an internal resistance of 0.5W.If a cable of 1.0W resistance is connected across the two terminals of the battery, the current drawn from the battery is
Options:
A) 16.0A
B) 8.0A
C) 0.8A
D) 0.4A
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The correct answer is B .
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Question 202: Which of the following statements is NOT correct?
Options:
A) The average range of distinct vision for a normal eye is from the far distance (infinity) up to about 25cm in front of the eye
B) Longsighted people have difficulty in making the eye lense sufficiently powerful to focus on nearby objects
C) Shortsighted people cannot accommodate distant objects
D) Longsighted people need diverging spectacle lenses
E) A person with long sight has his eye-ball too short and the image of an object is therefore formed behind the retina
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The correct answer is D .
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Question 203:
What is the reading of the vernier calipers shown above?
Options:
A) 1.79cm
B) 1.73cm
C) 1.39cm
D) 1.34cm
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The correct answer is C .
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Question 204: 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 205:
The diagram above represents the stress-strain graph for a typical metal rod. What does the X represent?
Options:
A) Breaking point
B) Yield point
C) Elastic limit
D) Proportional limit
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The correct answer is A .
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Question 206: In a large telecommunications auditorium, perforated absorbent materials are used to line the ceiling so as to
Options:
A) Increase the reverberation of sound in the hall
B) increase the amount of echo in the hall
C) reduce the hight of the ceiling from the floor
D) reduce the reverberation of sound in the hall
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The correct answer is D .
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Question 207: If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?
Options:
A) 6.0 x 10-2J
B) 7.6 x 10-2J
C) 1.8 x 10-2J
D) 6.6 x 10-2J
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The correct answer is A .
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Question 208: A string is sustaining a stationary wave when
Options:
A) the frequency of the wave is not proportional to the wavelength of the wave
B) the amplitude of vibration is always zero
C) two equal waves are travelling in opposite directions
D) the waves are longitudinal
E) the frequency is directly proportional to the length of the string
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The correct answer is C .
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Question 209:
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 210: The atmospheric pressure due to water is 1.3 x 106Nm-2. What is the total pressure at the bottom of an ocean 10m deep? [Density of water = 1000kgm-3, g = 10ms-2]
Options:
A) 1.3 x 107Nm-2
B) 1.4 x 106Nm-2
C) 1.4 x 105Nm-2
D) 1.0 x 10 5Nm-2
Show Answer
The correct answer is B .