set 12 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
(a) plano-converging lens
(b) converging lens
(c) diverging lens
(d) plano-diverging lens
The correct answers to the above question in:
Answer: (c)
Bubble will behave as diverging lens because refrective index of air is less than that of a glass.
Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 12) Online Quiz
Discuss Form
Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
Dispersion is the term used to describe
a) the bending of a beam of light when it strikes a mirror
b) the propagation of light in straight lines
c) the splitting of a beam of light into component colours
d) the change that takes place in white light after passage through red glass
Answer »Answer: (c)
Question : 2
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out
a) it stops working suddenly while giving white light
b) the light intensity gets reduced with no change in its colour
c) light colour changes first to yellow and then red with no change in intensity
d) colour changes to red and also intensity gets reduced
Answer »Answer: (d)
As the batteries wear out the energy supplied to the flash light becomes less so colour changes to red and intensity gets reduced as red colour has larger wavelength and less frequency, so less intensity.
Question : 3
Sound waves travel fastest in
a) Liquids
b) Gases
c) Solids
d) Vacuum
Answer »Answer: (c)
Question : 4
The ability of an optical instrument to show the images of two adjacent point objects as separate is called
a) resolving power
b) dispersive power
c) magnifying power
d) None of these
Answer »Answer: (a)
This ability refers to resolving power of the instrument.
Question : 5
When a person enters into a dark room from the strong light area, he is not able to see clearly for some time. Later he gradually begins to see things. This is because
a) Bleaching and reformation of Rhodopsins
b) Changes in the diameter and focal length of lens
c) Changes in the size of pupil
d) Eyes become familiar with darkness in course of time
Answer »Answer: (d)
Question : 6
The formation of glittering colours in thin foam of soap is the result of which of the following phenomenon?
a) Diffraction and dispersion
b) Total refraction and dispersion
c) Total reflection and interference
d) Polarization and interference
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
100+ Quadratic Equation Questions Answers PDF for Bank
Quadratic Equation multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
IBPS Aptitude Linear Equations MCQ Questions Answers PDF
Linear equations multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
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 »