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 1071: A force F is applied to a body P as shown in the diagram above. If the body moves through a distance, a, which of the following represents the work done?
Options:
A) Fa
B) Fa Cos θ
C)
D) FaSin θ
E)
Show Answer
The correct answer is B .
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Question 1072: If an object is placed in front of two mirrors inclined at 90o, how many images will be formed?
Options:
A) five
B) four
C) three
D) two
Show Answer
The correct answer is C .
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Question 1073: the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10-3m3 is
Options:
A) 2.49 x 105-2
B) 7.47 x 105-2
C) 2.49 x 106-2
D) 7.47 x 106-2
Show Answer
The correct answer is D .
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Question 1074:
The relationship between the coefficient of linear expansion and volumetric expansion () is-----------------
Options:
A) =
B) =
C) 3
D) =
Show Answer
The correct answer is C .
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Question 1075: When equal weights of iron and water are subjected to equal supply of heat, it is found that the piece of iron become more hotter than water after a short time because
Options:
A) the specific heat of iron is higher than that of water
B) iron is in solid form
C) water is in liquid form
D) the specific heat of water is higher than that of iron
E) the specific heat of iron is infinite
Show Answer
The correct answer is D .
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Question 1076: Which of the following is most strongly deflected by magnetic field?
Options:
A) - rays
B) X- particle
C) - particles
D) X - rays
Show Answer
The correct answer is C .
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Question 1077: For a short sighted person, light rays from a point on a very distant object is focused
Options:
A) in front of the retina
B) on the retina by a converging lens
C) behind the retina by a diverging lens
D) in front of the retina, a distance 2F from the lens
Show Answer
The correct answer is A .
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Question 1078:
Calculate the gravitation force of attraction between two planets of 1024kg and 1027kg separated by a distance of 1020meters.
Options:
A) 6.67N
B) 6.56N
C) 7.5N
D) 8.6N
Show Answer
The correct answer is A .
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Question 1079: A ball is moving at 18ms-1 in a direction inclined at 60o to the horizontal. The horizontal component to its velocity is
Options:
A) 9√3ms-1 ·
B) 6√3ms-1 ·
C) 8√3ms-1 ·
D) 9ms-1 ·
Show Answer
The correct answer is D .
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Question 1080:

An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit from each mirror. The number of images formed is
Options:
A) 1
B) 2
C) 3
D) 4
E) 5
Show Answer
The correct answer is C .