defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Physics Waves Wavelength and Frequency

एक तरंग का समीकरण y = 2 sin (314t - 2x + π/2)m है, तो तरंग की तरंगदैर्ध्य कितनी होगी ?

1

2.0 m

2

1.57 m

3

6.28 m

4

3.14 m

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