set 11 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 : ‘The stars seem to be higher on the sky than they actually are’. This can be explained by

(a) total internal reflection

(b) atmospheric refraction

(c) dispersion of light

(d) diffraction of light

The correct answers to the above question in:

Answer: (b)

Due to atmospheric refraction the twinkling of star, and their position appear higher than the normal.

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

Practice light, heat, thermodynamics, wave motion, sound, optics & oscillations (set 11) 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

To keep drinks at the same temperature for quite sometime, the walls of thermos bottle are coated with

a) Lead Powder

b) Silver Layer

c) Aluminium Paint

d) Mercury Layer

Answer: (b)

Question : 2

Human eye is most sensitive to visible light of the wavelength

a) 4500 Å

b) 5500 Å

c) 6050 Å

d) 7500 Å

Answer: (b)

Question : 3

Which one of the following statements is not true about cosmic rays?

a) They are made of highly energetic charged particles

b) They have very short wavelength

c) They are electromagnetic waves

d) They originate from the Sun

Answer: (c)

Question : 4

A biotechnique in which ultrasonic sound is used

a) E.C.G.

b) E.E.G.

c) Sonography

d) X-ray

Answer: (c)

Question : 5

What is the function of the thermostat of a refrigerator?

a) To increase the freezing point

b) To maintain constant temperature

c) To lower the temperature

d) To decrease the melting point

Answer: (b)

Question : 6

A : At high altitude regions the cooking of food becomes difficult. B : Water boils at lower temperature when the pressure is low.

a) A and B are correct and B is the correct explanation of A.

b) Both A and B are wrong.

c) A and B are correct and B is not the correct explanation of A.

d) A is correct but B is wrong.

Answer: (a)

Need More Mcqs on light, heat, thermodynamics, wave motion, sound, optics & oscillations of set 11 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

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

17-May-2024 by Careericons

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

16-May-2024 by Careericons

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

14-May-2024 by Careericons

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

13-May-2024 by Careericons

Continue Reading »