MCQ Quiz on Class 11 Physics Chapter 15 Waves with Answers

We have compiled the MCQ Questions for Class 11 Physics Chapter 15 Waves with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 11 Physics with Answers on a daily basis and score well in exams. Refer to the Waves Class 11 MCQs Quiz Questions with Answers here along with a detailed explanation.

Waves Class 11 MCQs Questions with Answers

MCQ Questions for Class 11 Physics Chapter 15 Waves with Answers

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1. The extension in a string, obeying Hookes law is X. The speed of sound in the stretched string is V. If the extension in the string is increased to 1.5 X, the speed of sound will be

 
 
 
 

2. To demonstrate the phenomenon of beats we need

 
 
 
 

3. Decibel is the anil of:

 
 
 
 

4. Whenever a wave enters from one medium to the another, its

 
 
 
 

5. Which of the following statements are true for wave motion?

 
 
 
 

6. When a compression is incident on rigid wall it is reflected as

 
 
 
 

7. Four wires of identical lengths, diameters and material and stretched on a sonometer box. The ratio of their tension is 1 : 4 : 9 : 16. the ratio of their fundamental frequencies is

 
 
 
 

8.  With the propagation of longitudinal waves through a medium, the quantity transmitted is

 
 
 
 

9. The equation of wave traveling along string is y = 3 cos p (100t – x) in C.G.S. unit then wavelength is

 
 
 
 

10. Water waves produced by a motorboat sailing in water are

 
 
 
 

11. With the increase in temperature, the frequency of the sound from an organ pipe

 
 
 
 

12. String is in fundamental mode of vibration then velocity is directly proportional to _______

 
 
 
 

13. Transverse are generated in two uniform wires A and B by attaching their free ends to a vibrating source of frequency 600 Hz. The diameter of wire A is one-third that of wire B and tension in the wire A is double that in wire B. What is the ratio of velocities of waves of waves in wire A and B?

 
 
 
 

14. A whistle giving out 450 Hz approaches a stationary observer at a speed of 33 m/s. The frequency heard by the observer in Hz is

 
 
 
 

15. Equation of a plane progressive wave is given by y = 0.6 sin 2π(t-x/2). On reflection from a denser medium, its amplitude becomes 2/3 of the amplitude of the incident wave

 
 
 
 

16. The speed of sound in a medium depends upon

 
 
 
 

17. Speed of sound wave in air

 
 
 
 

18. The velocity of sound in a gas is proportional to :

 
 
 
 

19. The factor that helps to recognise a person by his voice is

 
 
 
 

20.  A sound wave is passing through the air column in the form of compression and rarefaction. In consecutive compressions and rarefactions,

 
 
 
 

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