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 1631:

If current flows in the direction of the arrows in the solenoid above, the north pole is at
Options:
A) P
B) Y
C) X
D) Q
Show Answer
The correct answer is D .
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Question 1632:

The diagram above shows a velocity time graph representing the motion of a car. Find the total distance covered during the acceleration and retardation of the motion
Options:
A) 75m
B) 150m
C) 300m
D) 375m
Show Answer
The correct answer is A .
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Question 1633:
A 3000W electric cooker is to be used on a 200V mains circuit. Which of the fuses below can be used safely with the cooker?
Options:
A) 2A
B) 5A
C) 10A
D) 20A
Show Answer
The correct answer is D .
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Question 1634:
The limiting frictional force between two surfaces depends on
I. the normal reaction between the surfaces
II. the area of surface in contact
III. the relative velocity between the surfaces
IV. the nature of the surfaces
Options:
A) I only
B) II only
C) III only
D) I and IV only
Show Answer
The correct answer is D .
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Question 1635: The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is
Options:
A) 3.0 x 102Km-1
B) 3.0 x 103Km-1
C) 5.0 x 103Km-1
D) 3.0 x 104Km-1
Show Answer
The correct answer is B .
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Question 1636: A temperature scale has a lower fixed point of 40mm and a upper fixed point of 200mm. What is the reading on this scale when a thermometer reads 60oC?
Options:
A) 33.3mm
B) 36.0mm
C) 96.0mm
D) 136.0mm
Show Answer
The correct answer is D .
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Question 1637:
Which of the following characteristics of a wave is used in the measurement of the depth of the Sea?
Options:
A) diffraction
B) interference
C) refraction
D) reflection
Show Answer
The correct answer is D .
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Question 1638:
When the temperature of a liquid is increased, its surface tension
Options:
A) increases
B) decreases
C) remain constant
D) increases then decreases
Show Answer
The correct answer is B .
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Question 1639:
An astronomical telescope is said to be in normal adjustment when the?
Options:
A) eye is accommodated
B) focal length of an object lens is longer than that of eye piece
C) final image is at the near point of eye
D) final image is at infinity
Show Answer
The correct answer is D .
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Question 1640: Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media? i. light is passing from optically denser medium to optically less dense medium. ii. light is passing from optically less dense medium to optically denser medium. iii. angle of incidence is greater. iv. angle of incidence is lesser
Options:
A) i and ii only
B) ii and iii only
C) ii and iv only
D) i and iii only
E) ii and iv only
Show Answer
The correct answer is D .