Sail E0 Webinar

General Knowledge > General Science

PHYSICS MCQs

Total Questions : 3767 | Page 32 of 377 pages
Question 311. Instrument used to study the behaviour of a vibrating string is :
  1.    Barometer
  2.    Hydrometer
  3.    Hygrometer
  4.    Sonometer
 Discuss Question
Answer: Option D. -> Sonometer
Question 312. Man perceives sound vibrations in the frequency ranges of
  1.    0 – 5 Hz
  2.    6 – 10 Hz
  3.    11 – 20 Hz
  4.    20 – 20000 Hz
 Discuss Question
Answer: Option D. -> 20 – 20000 Hz
Question 313. Among the following materials sound travels fastest in
  1.    Steel
  2.    Air
  3.    Vacuum
  4.    Water
 Discuss Question
Answer: Option A. -> Steel
Question 314. Sound becomes hazardous noise pollution at decibels?
  1.    Above 120 db
  2.    Above 80 db
  3.    Above 50 db
  4.    Above 30 db
 Discuss Question
Answer: Option B. -> Above 80 db
Question 315. What is the SI unit of intensity of sound?
  1.    Decibel
  2.    Newton
  3.    Heartz
  4.    Tesla
 Discuss Question
Answer: Option A. -> Decibel
Question 316. Sound waves cannot travel in
  1.    Vacuum
  2.    Water
  3.    Glass
  4.    Hydrogen gas
 Discuss Question
Answer: Option A. -> Vacuum
Question 317. Sound cannot pass through
  1.    Water
  2.    Steel
  3.    Air
  4.    Vacuum
 Discuss Question
Answer: Option D. -> Vacuum
Question 318. The quality or tone of a musical sound produced by a stringed instrument depends on
  1.    Frequency of vibration
  2.    Length of the strings in the instrument
  3.    Amplitude of vibration
  4.    Wave form of the sound
 Discuss Question
Answer: Option D. -> Wave form of the sound
Question 319. Which determines the frequency of a sound wave?
  1.    Amplitude
  2.    Speed
  3.    Source
  4.    Medium
 Discuss Question
Answer: Option A. -> Amplitude
Question 320. The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?
  1.    50 : 18
  2.    25 : 9
  3.    3 : 5
  4.    5 : 3
 Discuss Question
Answer: Option D. -> 5 : 3

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Chapter 3.1 : Overview of Finance & Accounts Department Chapter 3 : Finance & Accounts SAIL E0 - GFM 2024
Chapter 2.1 : Overview Chapter 2 : Materials Management SAIL E0 - GFM 2024
Chapter 1.1 : Personnel Functions- An overview Chapter 1 : Personnel Management SAIL E0 - GFM 2024
GPOE / GPA Combined 1 Free CBT Mock Test SAIL E0 2024
CBT Mixed Test 1 GPOE/GPA SAIL E0 2024