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 .
Select the missing number from the given responses.
15 Select the number from among the given options that can replace the question mark (?) in the following series.
24, 48, 51, 204, 209, ?
Select the number from the given option that can replace the question mark [?] in the following series.
515, 517, 520, 525, 532, 543, 556, ?
Find the missing term :
...
In the following question, select the missing number from the given alternatives.
45, 15, 60, 75, 135, ?
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 10, 6, 964
Second row: 7, 3... Select the number from among the given option that can replace the question mark (?) in the following series.
4, 21, 86, 261, 526, ?
Find the missing number by analysing the pattern followed by the numbers in each row.
Study the given matric carefully and select the number from among the given options that can replace the question mark (?) in it.
Â
M/14 : O/12 : : U/6 : ?
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