Waves – 1 – 2

6. Velocity of a light wave is :

(a) 332 m/sec
(b) 3 x 108 m/sec
(c) 3 x 10-8 m/sec
(d) -332 m/sec

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

7. Velocity of a sound wave is :

(a) 332 m/sec
(b) 3 x 108 m/sec
(c) 3 x 10-8 m/sec
(d) -332 m/sec

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

8. The velocity of sound in air is independent on the change in :

(a) Pressure
(b) Density
(c) Temperature
(d) Humidity

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

9. The speed of sound will be greatest in :

(a) Air
(b) Vaccum 
(c) Water
(d) Metal

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

10. The unit of intensity of sound is :

(a) Volt
(b) Hz
(c) Decibel
(d) Joule

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

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