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 [NDA]

The standing wave pattern along a string of length 60 cm is shown in the above diagram. If the speed of the transverse waves on this string is 300 m/s, in which one of the following modes is the string vibrating ?

sound oscillations heat thermodynamics question answer 24

a) First overtone

b) Fundamental

c) Second overtone

d) Third overtone

Answer: (c)

Question : 22

A metal sheet with a circular hole is heated. The hole

a) remains of the same size

b) gets larger

c) gets smaller

d) gets deformed

Answer: (b)

Question : 23 [PCS (Pre) 2013]

The Doppler’s effect is applicable for

a) Sound waves

b) Space waves

c) Light waves

d) Both (a) and (c)

Answer: (d)

Question : 24 [UPPCS (Pre) 2007]

The safest temperature for keeping food fresh in a refrigerator is

a) 8°C

b) 0°C

c) 4°C

d) 10°C

Answer: (c)

Question : 25 [UPPCS (Mains) 2012]

The diamond appears lustrous because of

a) Total internal reflection

b) Refraction

c) Reflection

d) Scattering

Answer: (a)

IMPORTANT general science mcq EXERCISES

set 15 Online Quiz

Click to Start..
1653 heat wave motion sound optics oscillations based general science mcq set 15 question answer pdf
general science mcq CATEGORIES

Recently Added Subject & Categories For All Competitive Exams

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 »

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 »