TG EAMCET 3 May 2025 Shift 1 Paper

Step 1: Find the amplitude.
The total distance from one extreme point to the other is 10 cm . So the amplitude is half of this: 5cm=0.05m.
Step 2: Find the angular frequency (( ω) ).
The frequency f is 210 Hz .
Angular frequency: ω=2πf=2×‌

22

7

×210=44×30=1320rad∕s.
Step 3: Find the wave number ( k ).
The speed v is 330m∕s.
Wave number: k=‌

ω

v

=‌

1320

330

=4rad∕m.
Step 4: Write the equation of the wave.
The standard equation for a wave traveling along the positive X-axis is s(x,t)=Asin‌(kx−ωt).
Here, A=0.05m,k=4rad∕m, and ω=1320rad∕s, so:
s(x,t)=0.05sin‌(4x−1320t)