light, heat, thermodynamics, wave motion, sound, optics & oscillations - Category wise Question and Answer Practice Test with Solutions
light, heat, thermodynamics, wave motion, sound, optics & oscillations PRACTICE TEST [16 - EXERCISES]
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set 2
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set 9
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set 12
set 13
set 14
set 15
set 16
Question : 1 [UPPCS (Pre) 2010]
The atmosphere exerts enormous pressure on us. But, we do not feel it because
a) We are used to it
b) Our bones are very strong and can withstand the pressure
c) Our blood exerts a pressure slightly more than that of the atmosphere
d) The surface area of our head is very small
Answer »Answer: (c)
Question : 2
There are four objects A, B, C and D. It is observed that A and B are in thermal equilibrium and C and D are also in thermal equilibrium. However, A and C are not in thermal equilibrium. We can conclude that –
a) B and D cannot be in thermal equilibrium
b) B and D are in thermal equilibrium
c) B and D could be in thermal equilibrium but might not be A and D
d) the zeroth law of thermodynamics does not apply here because there are more than three objects
Answer »Answer: (a)
Thermal equilibrium means same temperature.
Question : 3
Consider the following statements.
- Some bodies may contract from heating
- Water shows anomalous expansion.
a) Both (A) and (B) are true.
b) (A) is true and (B) is false
c) (A) is false and (B) is true.
d) Both (A) and (B) are false.
Answer »Answer: (a)
Some bodies like wood, rubber etc. have a negative value of the coefficient of thermal expansion, hence they contract on heating.
Hence (A) is true. (B) is also true.
Question : 5
A coin in a beaker filled with water appears raised. This phenomenon occurs because of the property of
a) total internal reflection of light
b) reflection of light
c) refraction of light
d) interference of light
Answer »Answer: (c)
We know that, the apparent depth is m times less than the actual depth. i.e.,$d_{apparent} = {d_{actual}}/μ$
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set 12 Online Quiz
Click to Start..general science mcq CATEGORIES
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» Measurement And SI Units
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» Measuring Devices And Scales
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» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
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» Force Of Gravity, Solids And Fluids
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» Motion Under Gravity
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» Physical Properties Of Materials
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» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
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» Electric Current And Magnetism
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» Nuclear Physics And Conductivity
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» Modern And Space Physics, Sources Of Energy
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» General Concepts Of Chemistry
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» Nature Of Matter And Composition
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» Atomic Structure Molecules And Nuclear Chemistry
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» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
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» Metals, Non Metals, Minerals, Ores, Properties, Uses
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» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
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» Acids, Bases, Salts And Metals
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» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
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» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
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» Inorganic Chemistry
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» Organic Chemistry
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» Environmental Chemistry
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» Some Important Man Made Materials
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» Sub Divisions Of Biology
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» Genetics, Evolution Of Life & Ecological Biodiversity
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» Taxonomy
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» Heredity
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» Biofertilizer
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» Biological Classification Cell Tissues And Division
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» Human Anatomy
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» Blood Transport System
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» Digestion And Excretion
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» Photosynthesis
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» Vitamins, Nutrition, Health, Disease And Treatment
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» Endocrine Glands, Hormones
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» Physiology Of Plants, Humans And Animals
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» Reproduction
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» Genetic Engineering And Bio Technology
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