set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 3 EXERCISES
The following question based on modern and space physics, sources of energy topic of general science mcq
- 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
The correct answers to the above question in:
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.
Discuss Form
Read more physics ncert Based General Science Questions and Answers
Question : 1
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 : 2
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)
Question : 3
Audio signal cannot be transmitted because
a) the signal cannot be amplified for distance communication
b) the transmitting antenna length is very small to design
c) the signal has more noise
d) the transmitting antenna length is very large and impracticable
Answer »Answer: (d)
Question : 4
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 : 5
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 : 6
________ is used as a fuel in space ships.
a) Alcohol
b) Petrol
c) Hydrogen
d) Diesel
Answer »Answer: (c)
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
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 »