COMSATS Physics — Oscillations and Waves
Oscillations and Waves is part of the Physics section of the NTS NAT-IE test COMSATS admits on (10 of the 90 MCQs). It breaks into 3 subtopics, and we hold 26 NAT-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (3)
How Oscillations and Waves is tested
Across the 7 NAT-pattern papers on ParhaiKrlo, Oscillations and Waves accounts for 7 questions. It appears in all 7, about 1 questions a paper. The heaviest was COMSATS Past Paper 07, with 1 question.
| Paper | Questions |
|---|---|
| COMSATS Past Paper 07 | 1 |
| COMSATS Past Paper 06 | 1 |
| COMSATS Past Paper 05 | 1 |
| COMSATS Past Paper 04 | 1 |
| COMSATS Past Paper 03 | 1 |
| COMSATS Past Paper 02 | 1 |
| COMSATS Past Paper 01 | 1 |
Oscillations and Waves MCQs from the NAT-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · COMSATS Past Paper 07 · Oscillations and Waves
Sound travels at 340 m/s. What is the wavelength of a 170 Hz sound?
- A.0.5 m
- B.57,800 m
- C.510 m
- D.2 m
Show answer
Answer: D. 2 m — λ = v/f = 340 ÷ 170 = 2 m.
- Q2 · COMSATS Past Paper 06 · Oscillations and Waves
In a stationary wave, the distance between two neighbouring nodes is:
- A.two wavelengths (2λ)
- B.one wavelength (λ)
- C.half a wavelength (λ/2)
- D.a quarter wavelength (λ/4)
Show answer
Answer: C. half a wavelength (λ/2) — Nodes are λ/2 apart.
- Q3 · COMSATS Past Paper 05 · Oscillations and Waves
In simple harmonic motion, the acceleration of the body is:
- A.proportional to its velocity
- B.constant at all positions
- C.proportional to its displacement and directed towards the mean position
- D.directed away from the mean position
Show answer
Answer: C. proportional to its displacement and directed towards the mean position — SHM: a = −ω²x.