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]
Set 1
Set 2
Set 3
Set 4
Set 5
Set 6
Set 7
Set 8
Set 9
Set 10
Set 11
Set 12
Set 13
Set 14
Set 15
Set 16
Question : 11
Consider the following statements:
- Water kept in an open vessel will quickly evaporate on the surface of the moon.
- The temperature at the surface of the moon is much higher than boiling point of the water.
- Two bodies at different temperatures, if brought in contact do not necessary settle to the mean temperature.
- The two bodies may have different thermal capacities.
a) 2 and 3
b) 2, 3 and 4
c) 1, 2 and 3
d) 1, 2, 3 and 4
Answer »Answer: (d)
Heat is transferred between two or more systems or a system and its surrounding by virtue of temperature difference.
Question : 12
Consider the following statements:
- If a person looks at a coin which is in a bucket of water, the coin will appear to be closer than it really is.
- If a person under water looks at a coin above the water surface, the coin will appear to be at a higher level than it really is.
a) 2 only
b) 1 and 2
c) 1 only
d) None
Answer »Answer: (b)
Refraction is the change in direction of a wave due to a change in its speed. This is most commonly observed when a wave passes from one medium to another at any angle other than 90° or 0°.
The refraction of light is the most commonly observed phenomenon.
In both cases, the phenomenon of refraction is applicable because there will be a change in the direction and speed as light enters from one media to other. In case 1 light for an observer outside water the light ray is travelling from a denser medium (water) to a rarer medium (air).
Thus, the image of the coin will appear closer due to refraction. Whereas in case 2 for the observer underwater refraction also takes place but in the opposite way as light travels from a rarer medium (air) to a denser medium (water) .
Thus, the image of the coin will appear at a higher level than the actual position of the coin.
IMPORTANT GENERAL SCIENCE MCQ EXERCISES
-
Top Physics Objective GK Questions Answers Practice Quiz »
-
199+ Physics objective questions and answers to Banking »
-
Top Physics GK Questions and Answers Competitive Exams »
-
Basic 199+ Physics Objective Questions With Answers SSC »
-
New Physics General Knowledge MCQ Questions Answer IBPS »
-
Top Physics GK MCQ questions answers competitive exam »
-
New Physics General Knowledge MCQ All Competitive Exams »
-
Top Physics Thermodynamics GK MCQ Questions And Answers »
-
New Physics GK Objective Questions For Competitive Exams »
-
299+ Important Physics MCQs Test for Competitive Exam »
-
New 249+ Physics Multiple Choice Questions For Bank, SSC »
-
Top 199+ Physics General Knowledge Questions and Answers »
-
Top 199+ Physics Light MCQ Practice Test For Bank Exams »
-
Top 229+ MCQs on Heat Physics GK For Competitive Exams »
-
New 246+ General Science Physics MCQs Questions For IBPS »
-
New General Science Physics Questions Answers MCQ PDF »
set 8 Online Quiz
Click to Start..General Science Mcq CATEGORIES
-
» Measurement And SI Units
-
» Measuring Devices And Scales
-
» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
-
» Force Of Gravity, Solids And Fluids
-
» Motion Under Gravity
-
» Physical Properties Of Materials
-
» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
-
» Electric Current And Magnetism
-
» Nuclear Physics And Conductivity
-
» Modern And Space Physics, Sources Of Energy
-
» General Concepts Of Chemistry
-
» Nature Of Matter And Composition
-
» Atomic Structure Molecules And Nuclear Chemistry
-
» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
-
» Metals, Non Metals, Minerals, Ores, Properties, Uses
-
» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
-
» Acids, Bases, Salts And Metals
-
» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
-
» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
-
» Inorganic Chemistry
-
» Organic Chemistry
-
» Environmental Chemistry
-
» Some Important Man Made Materials
-
» Sub Divisions Of Biology
-
» Genetics, Evolution Of Life & Ecological Biodiversity
-
» Taxonomy
-
» Heredity
-
» Biofertilizer
-
» Biological Classification Cell Tissues And Division
-
» Human Anatomy
-
» Blood Transport System
-
» Digestion And Excretion
-
» Photosynthesis
-
» Vitamins, Nutrition, Health, Disease And Treatment
-
» Endocrine Glands, Hormones
-
» Physiology Of Plants, Humans And Animals
-
» Reproduction
-
» Genetic Engineering And Bio Technology