Question
A point located 5cm away from a source of sinusoidal
oscillations has a displacement equal to half of the maximum amplitude at time t=T/4 (where T is the time period). The source was at its mean position at t=0. What is the wavelength of the wave?Solution
Given:
- Distance of point from source = 5 cm =Â 0.05 m
- Displacement of point at t=T/4 = half of maximum amplitude = A/2
- At t=0, the source  is at mean position  (zero displacement).
- We are asked to find the wavelength .
If area of similar triangles ∆ ABC and ∆ DEF be 64 sq Cm and 121 sq cm and EF = 15.4 cm then BC equals
What is the height of an equilateral triangle with a side length of 10√2 cm?
In a triangle ABC, AD is the altitude from A to BC. If AD = 12 cm, AB = 13 cm, and AC = 14 cm, find the length of BC.
In triangle △ ABC, the internal angle bisectors of ∠B and ∠C intersect at point OO. If the measure of ∠BAC = 50o , determine the m...
- In triangle ABC, DE is drawn parallel to side BC. If AD = 6 cm, DB = 4 cm and AE = 9 cm, then find AC.
- The sides of two similar triangles are in the ratio 5:7. The areas of these triangles are in the ratio:
The vertices of a triangle are given as (5, 4), (9, 6), and (1, 5). Determine the area enclosed by this triangle.
- Find the area of a triangle with a base of 12.6 cm and a corresponding height of 18.4 cm.
The sides of a triangle are 15 cm, 20 cm, and 25 cm. A smaller triangle is drawn inside it such that its sides are proportional to the original triangle...
Two sides of a triangle are 10 cm and 15 cm. Which of the following can be the third side of the triangle?
Relevant for Exams:
