Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • The percentage change of velocity of sound when temperature increases from 0°C to 20°C is:Option: 1 1.5%<div class='qna-option'

The percentage change of velocity of sound when temperature increases from 0°C to 20°C is:

Option: 1

1.5%


Option: 2

3.5%


Option: 3

1.75%


Option: 4

2%


Answers (1)

best_answer

The velocity of sound, c \alpha \sqrt{T}

Here, T_{1} = 0 + 273 = 273K;     T_{2} = 20 + 273 = 293K

\frac{c_{20}}{c_{0}} = \sqrt{\frac{293}{273}} = (1 + \frac{20}{273})^{1/2} \approx 1 + \frac{1}{2} \cdot \frac{20}{273} = \frac{283}{273}

So, the percentage change in velocity,

\frac{283}{273} - 1 * 100 = 3.66% \approx 3.5%

Posted by

manish

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET 2025 City Slip (OUT) LIVE: Exam city intimation slip at neet.nta.nic.in; NTA exam centres in 566 cities
anam-khan

Karnataka government urges NMC to hike medical seats amid growing NEET aspirants
anam-khan

NEET UG 2025 city intimation slip by April 26; download at neet.nta.nic.in

Latest Question