Question

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Answer 1

Answer:

Amplitude: 12m

Frequency:75 ×10^6

Wavelength:4m

velocity:300×10^6

Answer 2

Answer:

(i)Amplitude = 12

(ii)Frequency = 3/5

(iii)Wavelength =4 m

(iv)Velocity = 4 m/s

Explanation:

(i)Amplitude : Maximum displacement of a vibrating from mean position is called amplitude . It is a vector quantity .

(ii)Frequency : No of oscillations per second is called frequency .

                                                  (or)

Reciprocal of time period is also known as frequency

(iii)Wave Length : the distance between two consecutive crusts is called wave length . It is denoted as lambda symbol . It's units are metre .

(iv)Velocity : Total distance covered per time is called velocity

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