set 6 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 16 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 »
The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq
List I | List II |
A. high pitch | 1. Faint sound |
B. low pitch | 2. Loud sound |
C. small amplitude | 3. High frequency |
D. large amplitude | 4. Low frequency |
(a) A – 4, B – 1, C – 2, D – 3
(b) A – 2, B – 1, C – 4, D – 3
(c) A – 2, B – 3, C – 4, D – 1
(d) A – 3, B – 4, C – 1, D – 2
The correct answers to the above question in:
Answer: (b)
The faster the vibration of source, the higher is the frequency and the higher is the pitch.
Discuss Form
Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
Consider the following statements :
- Some bodies may contract on heating.
- Water shows anomalous expansion.
a) 1 and 2 both
b) 2 only
c) 1 only
d) None
Answer »Answer: (a)
Some bodies like wood, rubber etc. have negative value of coefficient of thermal expansion, hence they contract on heating.
Hence 1 is true. 2 is also true.
Question : 2
Consider the following statements :
- The shock waves produced by a supersonic aircraft do not have much intensity.
- The speed of sound is maximum in solids.
- A bat emits ultrasonic waves.
- Sound waves of frequency below audible range are termed as ultrasonic.
a) 2 and 3
b) 1, 2 and 3
c) 1, 3, and 4
d) 1 and 4
Answer »Answer: (a)
A shock wave is a type of propagating disturbance. Like an ordinary wave, it carries energy and can propagate through a medium (solid, liquid, gas or plasma) or in some cases in the absence of a material medium. Across a shock wave there is always an extremely rapid rise in pressure, temperature and density of the flow.
Ultrasound is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz).
Question : 3
On adding common salt to water, the boiling point and freezing point of water will
a) Decrease
b) Decrease and increase respectively
c) Increase
d) Increase and decrease respectively
Answer »Answer: (d)
Question : 4
The splitting of white light into seven colours on passing through a glass prism is due to
a) interference
b) refraction
c) reflection
d) diffraction
Answer »Answer: (b)
Disperssion arises because of basic phenomenon refraction.
Question : 5
Which of the following processes result in cooling ?
- Evaporation of liquid
- Compression of gas
- Shaking a liquid in a vessel
- Adiabatic expansion of a gas
a) 2 and 3
b) 1 and 4
c) 1 and 3
d) 3 and 4
Answer »Answer: (b)
- The process of a liquid changing into its vapour below its boiling point is called evaporation. In this process remaining water after evaporation loses heat and gets cooled.
- If a gas is compressed, work is done on it which results in heating of the system or an increase in temperature.
- On shaking a liquid in a vessel, the kinetic energy of liquid molecules increases and hence, the temperature of the system increases.
-
In adiabatic process ΔQ = 0
From the first law of thermodynamics,
ΔQ = ΔU + ΔW
We have ΔU + ΔW = 0
If the gas expands adiabatically (DW→positive), DU will be negative, so internal energy and hence, the temperature of the system will decrease. Thus, the gas is cooled.
Thus option (b) is correct.
Question : 6
Consider the following statements : If the same note is played on a flute and a sitar, one can still distinguish between them because they differ in
- frequency
- intensity
- quality
a) 2 and 3 only
b) 1 and only
c) 3 only
d) 2 only
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
Most Important Antonyms Vocabulary - IBPS Clerk Prelims 2024
Latest Antonyms multiple choice questions and answers with free PDFfor IBPS Clerk Prelims 2024. English Vocabulary practice exercise for all bank exam
Continue Reading »
Syllogism Practice Questions Answers PDF - IBPS Clerk 2024
Practice Verbal Reasoning Syllogism multiple choice questions and answers with Fully solved explanation, PDF for the IBPS Clerk Prelims 2024 Bank Exam
Continue Reading »
IBPS Clerk Prelims 2024 Synonyms Questions Solved Answers
Most important IBPS Clerk Prelims 2024 Synonyms and Antonyms multiple choice questions and answers with detailed solutions, English vocabulary PDF Download
Continue Reading »
New Cloze Test Questions and Answers PDF - IBPS Clerk 2024
The most important Cloze Test questions with detailed answers for upcoming IBPS Clerk prelims 2024. Latest English verbal ability practice MCQs, PDF
Continue Reading »