light, heat, thermodynamics, wave motion, sound, optics & oscillations - Category wise Question and Answer Practice Test with Solutions

light, heat, thermodynamics, wave motion, sound, optics & oscillations PRACTICE TEST [16 - 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

Question : 21

The sprinkling of water slightly reduces the temperature of a closed room because

a) water has large latent heat of vaporisation

b) temperature of water is less than that of the room

c) specific heat of water is high

d) water is a bad conductor of heat

Answer: (a)

Question : 22 [NDA]

Which one among the following denotes the smallest temperature?

a) 1° on the Kelvin scale

b) 1° on the Celsius scale

c) 1° on the Fahrenheit scale

d) 1° on the Reaumur scale

Answer: (a)

Question : 23 [UPPCS (Mains) 2011]

Red light signal is used as a danger signal because

a) It produces least chemical reaction

b) This is comfortable for eyes

c) Red light is scattered least

d) It is least absorbed in air

Answer: (c)

Question : 24 [IAS Prelim]

Strips of two metals A and B are firmly joined together as shown in the figure. On heating, A expands more than B does. If this jointed strip is heated, then it will appear as 


sound oscillations heat thermodynamics question answer 40

a) Figure a

sound oscillations heat thermodynamics question answer 40 option b

b) Figure b

sound oscillations heat thermodynamics question answer 40 option a

c) Figure c

sound oscillations heat thermodynamics question answer 40 option c

d) Figure d

sound oscillations heat thermodynamics question answer 40 option d

Answer: (a)

Question : 25

In order that the heat flows from one part of a solid to another part, what is required?

a) Density gradient

b) Uniform density

c) Temperature gradient

d) Uniform temperature

Answer: (c)

As heat flows from higher temperature to lower temperature, so a temperature gradient is required.

IMPORTANT general science mcq EXERCISES

set 7 Online Quiz

Click to Start..
1645 light thermodynamics sound optics and oscillations based general science mcq set 7 question answer pdf
general science mcq CATEGORIES

Recently Added Subject & Categories For All Competitive Exams

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

02-Jul-2024 by Careericons

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

02-Jul-2024 by Careericons

Continue Reading »

IBPS Profit and Loss Questions Solved Problems with PDF

Most important Profit and Loss multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Aptitude MCQ Practice Exercises all competitive exams

28-Jun-2024 by Careericons

Continue Reading »

100+ Average Aptitude Questions Answers solutions MCQ PDF

New Average multiple choice questions and answers with PDF for IBPS RRB PO. 100+ Quantitative Aptitude MCQ Practice Exercises all competitive exams

28-Jun-2024 by Careericons

Continue Reading »