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 1261: A solid of weight 0.600N is totally immersed in oil and water respectively. If the upthrust of oil is 0.210N and the relative density of oil is 0.875. Find the upthrust in water.
Options:
A) 0.600N
B) 0.360N
C) 0.240N
D) 0.180N
Show Answer
The correct answer is C .
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Question 1262: Natural radioactivity consists of the emission of
Options:
A) -particle and rays
B) -particle and X-rays
C) -rays and X-rays
D) -particle, rays and -rays
E) -particle, rays, -rays and X-rays
Show Answer
The correct answer is D .
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Question 1263:
Which of the following thermometers measures temperature from the thermal radiation emitted by objects?
Options:
A) Pyrometer thermometer
B) Platinum resistance thermometer
C) Thermocouple thermometer
D) Constant pressure gas thermometer
Show Answer
The correct answer is A .
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Question 1264:

From the diagram above, calculate the energy stored in the capacitor
Options:
A) 4.0 x 10J
B) 4.0 x 10J
C) 8.0 x 10J
D) 8.0 x 10J
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The correct answer is B .
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Question 1265: Two inductors of inductances 5 mll and 15 mll are connected in series and a current of 5A flows through them. the total energy stored in the inductor is
Options:
A) 500.0J
B) 250.0J
C) 62.5J
D) 50.0J
E) no correct option
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The correct answer is E .
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Question 1266: An object moves with uniform speed round a circle. Its acceleration has
Options:
A) constant magnitude and constant direction
B) constant magnitude and varying direction
C) varying magnitude but constant direction
D) varying magnitude and varying direction
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The correct answer is B .
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Question 1267: Given the progressive wave equation y = 5 sin (2000 πt - 0.4x), calculate wave length
Options:
A) 12.4 m
B) 15.7 m
C) 17.5 m
D) 18.6 m
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The correct answer is B .
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Question 1268:
Electrons were discovered by
Options:
A) Dalton
B) James Charwick
C) J.J. Thompson
D) Niels Bohr
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The correct answer is C .
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Question 1269: A heating coil rated 1000 W is used to boil off completely 2 kg of boiling water. the time required to boil of the water is_______[Special latent heat of Vaporization of water = 2.3 x 106 Jkg-1]
Options:
A) 1.15 x 104s
B) 1.15 x 103s
C) 4.6 x 104s
D) 4.6 x 103s
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The correct answer is D .
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Question 1270: The accurate measurement of the relative density of a substance in its powdered form is done with a beam balance and
Options:
A) a density bottle
B) an eureka can
C) a pipette
D) a burette
Show Answer
The correct answer is A .