NCERT Class 11 Physics MCQ Chapter 14 Waves Solutions, AHSEC Class 11 Physics Multiple Choice Question Answer to each chapter is provided in the list so that you can easily browse throughout different chapters NCERT Class 11 Physics MCQ Chapter 14 Waves Question Answer and select needs one.
Class 11 Physics MCQ Chapter 14 Waves
Also, you can read the SCERT book online in these sections NCERT Class 11 Physics Multiple Choice Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. AHSEC Class 11 Physics MCQ Solutions. These solutions are part of SCERT All Subject Solutions. Here we have given HS 1st Year Physics Objective Type Question Answer for All Subjects, You can practice these here.
Waves
Chapter: 14
| PART – ⅠⅠ |
MULTIPLE CHOICE QUESTION ANSWER
1. Which of the following is NOT a mechanical wave?
(i) Sound wave.
(ii) Light wave.
(iii) Water wave.
(iv) Seismic wave.
Ans: (ii) Light wave.
2. What is the primary cause of wave formation on the water surface when a pebble is dropped?
(i) Water flow.
(ii) Moving water particles.
(iii) Propagation of a disturbance.
(iv) Wind effect.
Ans: (iii) Propagation of a disturbance.
3. A string of mass 2.50 kg and length 20.0 m is under a tension of 200 N. What is the wave speed on this string?
(i) 20 m/s
(ii) 40 m/s
(iii) 50 m/s
(iv) 60 m/s
Ans: (ii) 40 m/s.
4. When two waves of the same frequency and amplitude are superimposed in phase, the resulting wave will have:
(i) Lower amplitude.
(ii) Higher frequency.
(iii) Lower frequency.
(iv) Higher amplitude.
Ans: (iv) Higher amplitude.
5. Which scientist is NOT associated with the early study of wave motion?
(i) Christiaan Huygens.
(ii) Robert Hooke.
(iii) Isaac Newton.
(iv) Albert Einstein.
Ans: (iv) Albert Einstein.
6. A stone is dropped from a height of 300 m. Assuming g = 9.8 m/s², how long does it take for the stone to reach the ground?
(i) 7.8 seconds.
(ii) 6 seconds.
(iii) 9 seconds.
(iv) 5 seconds.
Ans: (i) 7.8 seconds.
7. The phenomenon of the bending of waves around obstacles is called:
(i) Reflection.
(ii) Refraction.
(iii) Diffraction.
(iv) Interference.
Ans: (iii) Diffraction.
8. With propagation of longitudinal waves through a medium, the quantity transmitted is:
(i) Matter.
(ii) Energy.
(iii) Energy and matter.
(iv) Energy, matter and momentum.
Ans: (ii) Energy.
9. Which type of wave includes waves on a string?
(i) Longitudinal.
(ii) Transverse.
(iii) Matter.
(iv) Electromagnetic.
Ans: (ii) Transverse.
10. If the speed of sound in air is 340 m/s, how long does it take for sound to travel 300 m?
(i) 0.88 seconds.
(ii) 1.5 seconds.
(iii) 0.75 seconds.
(iv) 1 second.
Ans: (i) 0.88 seconds.
11. Which of the following statements are true for wave motion?
(i) Mechanical transverse waves can propagate through all mediums.
(ii) Longitudinal waves can propagate through solids only.
(iii) Mechanical transverse waves can propagate through solids only.
(iv) Longitudinal waves can propagate through vacuum.
Ans: (iii) Mechanical transverse waves can propagate through solids only.
12. A steel wire has a mass of 2.10 kg and a length of 12.0 m. What is the mass per unit length, μ?
(i) 0.150 kg/m
(ii) 0.125 kg/m
(iii) 0.175 kg/m
(iv) 0.200 kg/m
Ans: (iii) 0.175 kg/m
13. The wave speed in a stretched string depends on:
(i) Only the mass of the string.
(ii) Only the tension in the string.
(iii) Both mass per unit length and tension.
(iv) Only the length of the string.
Ans: (iii) Both mass per unit length and tension.
14. In a progressive wave, the crest travels a distance equal to the wavelength during:
(i) One second.
(ii) One oscillation period.
(iii) Half an oscillation period.
(iv) Twice the oscillation period.
Ans: (ii) One oscillation period.
15. The wave speed in a stretched string depends on:
(i) Only the mass of the string.
(ii) Only the tension in the string.
(iii) Both mass per unit length and tension.
(iv) Only the length of the string.
Ans: (iii) Both mass per unit length and tension.
