modern and space physics, sources of energy - Category wise Question and Answer Practice Test with Solutions
Question : 16 [NDA]
Sun emits energy in the form of electromagnetic radiation. The following help in the generation of solar energy. Arrange them in the right sequence beginning from the starting of the cycle :
- Hydrogen is converted to helium at very high temperatures and pressures.
- The energy finds its way to sun's surface.
- A vast quantity of energy is generated by nuclear fusion.
a) 2-3-1
b) 3-2-1
c) 1-2-3
d) 1-3-2
Answer »Answer: (d)
Question : 17
An AM broadcasting station has a vertical telescopic transmitting antenna and a receiver has a vertical telescopic antenna. The receiver will respond to:
a) Magnetic component of the electromagnetic wave produced by antenna
b) Both electric and magnetic components of the electromagnetic wave produced by antenna
c) Electric component of the electromagnetic wave produced by antenna
d) 50% of both components of the electromagnetic wave produced by antenna
Answer »Answer: (c)
An AM broadcasting station has a vertical telescopic transmitting antenna and a receiver has a vertical telescopic antenna.
The receiver will respond to electric component of the electromagnetic wave produced by antenna.
Question : 18
Consider the following statements :
- Short wave bands are used for transmission of radio waves to a large distance.
- Short waves are reflected by ionosphere.
- A pure semiconductor has negative temperature coefficient of resistance.
a) 2 and 3
b) 1 and 3
c) 1 and 2
d) 1, 2 and 3
Answer »Answer: (d)
Waves having the range of wavelength from 30 km to 30 cm are known as short waves.
These waves are used for radio transmission and for general communication purpose to a longer distance from ionosphere.
Ionosphere is the outermost region of atmosphere extending from height of 80 km to 400 km approximately, above the surface of earth.
Question : 19
Column I | Column II |
A. Hydrogen bomb | 1. Fission |
B. Atom bomb | 2. Fusion |
C. Binding energy | 3. Critical mass |
D. Nuclear reactor | 4. Mass defect |
a) (A) → (2); (B) → (1); (C) → (4); (D) → (3)
b) (A) → (3); (B) → (1); (C) → (2); (D) → (4)
c) (A) → (3); (B) → (2); (C) → (1); (D) → (4)
d) (A) → (4); (B) → (2); (C) → (3); (D) → (1)
Answer »Answer: (a)
Question : 20
Tidal energy is a
a) form of energy which is obtained from the river in the form of tidal waves
b) form of energy which is obtained from the lake in the form of tidal waves
c) form of energy obtained from kinetic energy of moving ocean water
d) form of energy which is obtained from the ocean in the form of tidal waves.
Answer »Answer: (d)
IMPORTANT general science mcq EXERCISES
set 1 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
RECENT BLOGS
Recently Added Subject & Categories For All Competitive Exams
New 100+ Compound Interest MCQ with Answers PDF for IBPS
Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Mixture and Alligation MCQ Questions PDF for IBPS
Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams
Continue Reading »
IBPS Profit and Loss Questions Solved Problems with PDF
Most important Profit and Loss multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Aptitude MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Average Aptitude Questions Answers solutions MCQ PDF
New Average multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Quantitative Aptitude MCQ Practice Exercises all competitive exams
Continue Reading »