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 1201: Radio carrier waves are generated by causing electrons to oscillate rapidly in
Options:
A) a microphone
B) a television camera
C) an antenna
D) coaxial cables
E) a transmitter
Show Answer
The correct answer is E .
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Question 1202:
A bar magnet is divided into two pieces, which of the following statement is correct?
Options:
A) two new magnets are created
B) the magnetic field of each separate piece becomes stronger
C) the electric field is created
D) the bar magnet is demagnetized
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The correct answer is A .
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Question 1203:

The above figure shows the motion of a progressive wave along a string. The particle motion of the medium is in direction
Options:
A) parallel to OX
B) parallel to OY
C) 60o to OX
D) 60v to OY
Show Answer
The correct answer is B .
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Question 1204: An observer with normal eyes views an object with magnifying glass of focal length 5 cm. the angular magnification is?
[least distance of distinct vision D = 25 cm]
Options:
A) -6
B) -5
C) 5
D) 6
Show Answer
The correct answer is A .
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Question 1205: Which of the following statements is CORRECT? i. the mass number is equal to the total number of protons and electrons in an atom. ii. the atomic number is equal to the number of protons in an atom. iii. the number of electrons in an atom is equal to the total number of protons and neutrons in the nucleus.
Options:
A) i only
B) ii only
C) iii only
D) i and ii only
E) ii and iii only
Show Answer
The correct answer is B .
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Question 1206:
When the temperature of a liquid increases,its surface tension
Options:
A) decreases
B) increases
C) remains constant
D) increases then decreases
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The correct answer is A .
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Question 1207:
Two bodies have masses in the ratio3:1. They experience forces whichimpart to them,acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced
Options:
A) 1:4
B) 2:1
C) 2:3
D) 2:5
Show Answer
The correct answer is C .
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Question 1208: An electric kettle, connected to a 240V mains, produces 6.0 x 105J of heat energy to boil a quantity of water in 5 minutes. Find the resistance of the kettle.
Options:
A) 14.4
B) 28.8
C) 144
D) 288
E) 2880
Show Answer
The correct answer is B .
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Question 1209: A milliameter of resistance 5 and full scale deflection of 5m A is to used to measure a potential difference of 50 V. The resistance of the multiplier should be
Options:
A) 95
B) 110
C) 595
D) 995
E) 1005
Show Answer
The correct answer is D .
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Question 1210:

Fig 12 above shows the velocity time graph of a car which starts from rest and is accelerated uniformly at the rate of 3m sec-2 for 5 seconds. It attains a velocity which is maintained for a minute, The car is then brought to rest by a uniform retardation after another 3 seconds. calculate the total distance covered
Options:
A) 900m
B) 1920m
C) 960m
D) 860m
Show Answer
The correct answer is C .