Default Title

Questions

Question (41)

QN006702

Which medium has the least speed of sound?

(A) Steel
(B) Water
(C) Air
(D) Wood

Correct Answer: C

Explanation:

Link:

Report Error

Question (42)

QN006703

A sound wave travels 680 m in 2 s. Its speed is:

(A) 170 m/s
(B) 340 m/s
(C) 510 m/s
(D) 1360 m/s

Correct Answer: B

Explanation:

Speed = Distance ÷ Time = 680 ÷ 2

Link:

Report Error

Question (43)

QN006704

If sound travels at 330 m/s, distance covered in 5 s is:

(A) 660 m
(B) 990 m
(C) 1650 m
(D) 3300 m

Correct Answer: C

Explanation:

Distance = Speed × Time

Link:

Report Error

Question (44)

QN006705

A wave completes 200 vibrations in 10 s. Its frequency is:

(A) 10 Hz
(B) 20 Hz
(C) 40 Hz
(D) 200 Hz

Correct Answer: B

Explanation:

Frequency = Vibrations ÷ Time

Link:

Report Error

Question (45)

QN006706

Time period of a wave having frequency 50 Hz is:

(A) 0.5 s
(B) 0.2 s
(C) 0.02 s
(D) 2 s

Correct Answer: C

Explanation:

T = 1/f

Link:

Report Error

Question (46)

QN006707

A sound wave has wavelength 2 m and frequency 170 Hz. Its speed is:

(A) 85 m/s
(B) 170 m/s
(C) 340 m/s
(D) 680 m/s

Correct Answer: C

Explanation:

v = fλ

Link:

Report Error

Question (47)

QN006708

Frequency of a wave with speed 300 m/s and wavelength 6 m is:

(A) 25 Hz
(B) 50 Hz
(C) 75 Hz
(D) 1800 Hz

Correct Answer: B

Explanation:

f = v/λ

Link:

Report Error

Question (48)

QN006709

Which property determines the pitch of sound?

(A) Amplitude
(B) Frequency
(C) Speed
(D) Wavelength only

Correct Answer: B

Explanation:

Link:

Report Error

Question (49)

QN006710

Loudness of sound mainly depends on:

(A) Frequency
(B) Speed
(C) Amplitude
(D) Time period

Correct Answer: C

Explanation:

Link:

Report Error

Question (50)

QN006711

Which application of sound propagation is important in medical imaging?

(A) Radar
(B) SONAR
(C) Ultrasound scanning
(D) Periscope

Correct Answer: C

Explanation:

Link:

Report Error

Excel With Tutors

Learn At Your Own Pace... Because, Everyone's Pace of Learning is Different...

ExcelWithTutors

A unit of Innovexcel Edu Solution LLP.

SWIFT, RELIABLE & CONVENIENT..

Social Media

Corporate Office :
Bharat Impact Building, C-26, Sector - 59, Noida, Uttar Pradesh - 201301, India

For Student

For Tutors

OUR POLICY

Excel With Tutors : A Perfect Tutoring Platform & Repository of Learning Materials. Matches the Best Tutor as Per Your Requirement.