# Waves – Exercise – 1

Exercise – 1

1. Sound waves are examples of :

(a) Longitudinal wave
(b) Transverse wave
(c) both (a) and (b)
(d) None of these

Answer
Answer : (a)
Explanation
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2. The unit of frequency is :

(a) Newton
(b) Hz
(c) Watt
(d) Jaule

Answer
Answer : (b)
Explanation
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3. Relation between wavelength λ, frequency n, and wave velocity v is :

(a) nv = λ
(b) nλ = v
(c) vλ = 1
(d) vλ = n

Answer
Answer : (b)
Explanation
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4. Which of the following is a transverse wave :

(a) Sound wave
(b) Electromagnetic wave
(c) both (a) and (b)
(d) None of these

Answer
Answer : (b)
Explanation
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5. What types of waves required material medium ?

(a) Sound wave
(b) Light wave
(c) Current
(d) None of these

Answer
Answer : (a)
Explanation
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