set 3 MCQ Questions & Answers Detailed Explanation

MOST IMPORTANT general science mcq - 16 EXERCISES

Top 30,000+ General Science Memory Based Exercises

The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq

Questions : When a drop of oil is spread on a water surface, it displays beautiful colours in daylight because of

(a) polarization of light

(b) dispersion of light

(c) reflection of light

(d) interference of light

The correct answers to the above question in:

Answer: (d)

The colours are seen due to interference of light. The colours seen in reflected light are complementary with the colours seen in transmitted light.

Read more questions on light heat thermodynamics wave sound optics oscillation of physics gk set 3 Click Here »

Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 3) Online Quiz

Discuss Form

Valid first name is required.
Please enter a valid email address.
Your genuine comment will be useful for all users! Each and every comment will be uploaded to the question after approval.

Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers

Question : 1

Ultrasonics are sound waves of frequency

a) Less than 10,000 Hz

b) Equal to 1000 Hz

c) Greater than 20,000 Hz

d) None of the above

Answer: (c)

Question : 2

CT scan is done by using

a) Visible Light

b) Ultrasonic Waves

c) Infra-red Rays

d) X-Rays

Answer: (d)

Question : 3

The mirror, which is used in searchlights, is

a) Simple mirror

b) Convex mirror

c) Concave mirror

d) None of the above

Answer: (c)

Question : 4

Which of the following is not close to a black body?

a) Black holes

b) Black board paint

c) Green leaves

d) Red roses

Answer: (b)

Question : 5

It is more comfortable to wear white cloth in summer because

a) They radiate heat transferred from the body

b) They absorb perspiration

c) They reflect all the heat falling on them

d) They are soothing to the eye

Answer: (c)

Question : 6

Range of audio-frequencies is

a) 103 – 105 Hz

b) 1 –15 Hz

c) 20 – 20, 000 Hz

d) 106 – 108 Hz

Answer: (c)

Need More Mcqs on light, heat, thermodynamics, wave motion, sound, optics & oscillations of set 3 Click Here »
GET light, heat, thermodynamics, wave motion, sound, optics & oscillations PRACTICE TEST EXERCISES

set 1

set 2

set 3

set 4

set 5

set 6

set 7

set 8

set 9

set 10

set 11

set 12

set 13

set 14

set 15

set 16
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

Top Permutations Combinations Practice Exercises for IBPS

Permutations Combinations objective multiple choice questions with detailed answers for IBPS RRB SO. Attitude practice exercises for all bank exams

04-Jul-2024 by Careericons

Continue Reading »

100+ Probability Aptitude Mcq Questions and Answers PDF

Probability objective multiple choice questions with detailed answers for IBPS RRB SO. More than 100+ Attitude practice exercises for all competitive exams

04-Jul-2024 by Careericons

Continue Reading »

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

03-Jul-2024 by Careericons

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

03-Jul-2024 by Careericons

Continue Reading »