Question

In a standing wave, the distance between two successive antinodes is 15 cm. The distance covered by it in producing 4 waves is ........................ m

• A. 1.5
• B. 2.5
• C. 1.2
• D. 0.5

Answer 1

Answer: (C)

1.2

Given $\lambda$/2 = 15 cm (distance between two antinodes)
So, $\lambda$ = 30 cm
4$\lambda$ = 4 x 30 cm = 1.2 m