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A stone weighing 200 g weighs 150 g when immersed in water and 175 g when immersed in oil. The density of the oil is

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Important Questions on General Properties of Matter

EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 23
An irregular shaped body has weight of 12 N in air and 8 N in water. What is its density, in kg m-3?
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 25
The following four wires are made of the same material. Which of these will have the largest extension, when the same tension is applied?
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 26
A weather forecasting meteorological balloon of volume 10 m3 contains hydrogen of density 0.09 kg m-3 and its fabric mass is 6.5 kg. If it is floating in air of density 1.25 kg m-3, then the mass of the equipment, it carries would be
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 27
The fraction of the total volume of an iceberg of density 0.93 gcm-3 floating in North Sea with density of 1.03 gcm-3 is
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 28
A stone weighing 750 g appears to weigh only 500 g when it is submerged in water of density 1 g cc-1. The volume of the stone is
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 29
One thousand small water drops of equal size combine to form a big drop. The ratio of the final surface energy to the total initial surface energy is_____.
MEDIUM
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Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 30
For a steel boat floating on a lake, the weight of the water displaced by the boat is
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 5 - General Properties of Matter>Practice Exercise>Q 31
When a solid object is immersed in water, then there is a loss in its weight. This loss is