set 16 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) UV rays
(b) X-rays
(c) Gamma rays
(d) Visible lights
The correct answers to the above question in:
Answer: (b)
Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 16) Online Quiz
Discuss Form
Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
Two holes of unequal diameters d1 and d2 (d1 > d2 ) are cut in a metal sheet. If the sheet is heated,
a) d1 will increase, d2 will decrease
b) both d12 will decrease
c) both d1 and d2 will increase
d) d1 will decrease, d2 will increase
Answer »Answer: (c)
When a body is heated, the distance between any two points on it increases. The increase is in the same ratio for any set of two point.
Question : 2
In producing a pure spectrum, the incident light is passed through a narrow slit placed in the focal plane of an achromatic lens because a narrow slit
a) allows only one colour at a time
b) produces less diffraction
c) increases intensity
d) allows a more parallel beam when it passes through the lens
Answer »Answer: (d)
We know that C = sin-1 $(1/μ)$
Given iB > iA, ∴ μB < μA
So B is rarer and A is denser. Light will be totally reflected when it passes from A to B. Now critical angle for A to B
CAB = sin-1 $(1/_Bμ_A)$ = sin-1 $(_Aμ_B)$
sin-1 $(μ_B/μ_A)$ = sin-1 $({i_B}/i_A)$.
Question : 3
The image formed by astronomical telescope is
a) Real and diminished
b) Virtual and magnified
c) Virtual and diminished
d) Real and magnified
Answer »Answer: (b)
Question : 4
Consider the following natural phenomena.
- Terrestrial heating
- Reflection of light
- Refraction of light
- Diffraction of light
a) 1 and 3
b) 2, 3 and 4
c) 1 and 2
d) Only 4
Answer »Answer: (a)
Question : 5
Which of the following qualities are useful for a cooking utensil?
a) Low specific heat and low thermal conductivity
b) High specific heat and high thermal conductivity
c) High specific heat and low thermal conductivity
d) Low specific heat and high thermal conductivity
Answer »Answer: (d)
A cooking utensil must heat up quickly and must transmit heat rapidly. Hence, it must have low specific heat and high thermal conductivity.
Question : 6
The most important function of perspiration is to
a) Regulate body water supply
b) Get rid of body poison
c) Regulate body temperature
d) Keep the skin pores clear of dirt
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
Series Completion Questions & Answers PDF IBPS Clerk 2024
Top Alphabet Number Series Completion based Verbal Reasoning Multiple choice questions with answers PDF, & Free IBPS Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
New 150+ Percentage Questions For IBPS Clerk Prelims 2024
Free Top Percentage Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz PDF & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »
Classification Reasoning MCQ For IBPS Clerk Prelims 2024
Most Important 100+ Classification based Verbal Reasoning Ability Multiple choice questions and answers PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
Ratio and Proportion Questions with Solutions, IBPS Clerk
New Ratio and Proportion Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »