Question
What conditions must be met for stationary waves to
form?Solution
Stationary waves, or standing waves, form when two waves of equal wavelength and amplitude travel in opposite directions along the same path. This interference results in a wave pattern that appears to be standing still.
The base of a triangular plot is 25 meters, and its height is 30 meters. If a path of 2 meters wide is to be built around the plot, what will be the are...
If in triangle ABC, If side AB=6√ 3, AC=12 and BC=6, then angle B equals:
- The base of a right pyramid is an equilateral triangle with side 12 cm. If the height of the pyramid is 40√3 cm, calculate the volume of the pyramid.
- Two triangles ACB and PQR are similar to each other. If AC = 8 cm, PQ = 12 cm and PR = 16.8 cm, then find the length of AB.
- Determine the length of side BC if ∠BAC = 60⁰, AB= 10 cm and AC = 15 cm.
In ∆ PQR, S is the midpoint of QR. T is the midpoint of line PS. Then, Area of ∆PTQ : Area of ∆ PQR is
The corresponding medians of two similar triangles are 12 cm and 15 cm. If the area of the first triangle is 288 cm, then find the area of the second tr...
In △ ABC, D and E are the points on sides AB and AC. respectively and DE | BC. BC = 8 cm and DE = 5 cm. If the area of △ ADE = 45 cm², then wha...
∠A, ∠B, and∠C are three angles of ∆ABC.if ∠A-∠B=15°, ∠B-∠C =30°,then ∠ A, ∠B and ∠C are?
- The base of a right pyramid is an equilateral triangle with side 8 cm. If the height of the pyramid is 36√3 cm, determine the volume of the pyramid.
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