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 : 11 [BPSC (Pre) 2000]

Reading glasses are made from which type of lenses?

a) Plain

b) Convex

c) Concave

d) None of these

Answer: (b)

Question : 12

Match List I with List II and select the correct answer using the codes given below the lists.

List I List II
A. Sound wave 1. Transverse
B. Lightwave 2. Longitudinal
C. The speed of sound in a perfectly rigid rod 3. zero
D. The speed of sound in a vacuum 4. Infinite
Choose the correct option from the codes given below :

a) A – 4, B – 1, C – 2, D – 3

b) A – 2, B – 1, C – 4, D – 3

c) A – 2, B – 3, C – 4, D – 1

d) A – 4, B – 3, C – 2, D – 1

Answer: (b)

Sound waves cannot travel in a vacuum, because sound waves are mechanical waves.

Question : 13 [PSC (Pre) 2018]

The concept of expanding universe is based on

a) Zeeman effect

b) Stark effect

c) Doppler effect

d) Raman effect

Answer: (c)

Question : 14 [UPPCS (Pre) 2006]

Expansion during heating

a) Increases the weight of the material

b) Decreases the density of the material

c) Occurs only in solid

d) Occurs at the same rate for all liquids and solids

Answer: (b)

Question : 15

Two pulses travel in mutually opposite directions in a string with a speed of 2.5 cm/s as shown in the figure. Initially the pulses are 10 cm apart. What will be the state of the string after two seconds

a)

physics sound mcq question answer 8 option c

b)

physics sound mcq question answer 8 option a

c)

physics sound mcq question answer 8 option d

d)

physics sound mcq question answer 8 option d

Answer: (a)

After 2 second, each wave travels a distance = 2.5 × 2 = 5 m and

So the shape in figure (a) is the correct one.

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

Time and work Questions with Solution PDF IBPS Clerk 2024

Free Time and Work Quants Aptitude concepts based Multiple Choice Questions and Answers Practice Test, Downloadable Quiz PDF for IBPS Clerk Prelims 2024 Exam

07-May-2024 by Careericons

Continue Reading »

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

06-May-2024 by Careericons

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

04-May-2024 by Careericons

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

03-May-2024 by Careericons

Continue Reading »