CBSE Class 11 Physics Chapter 15 Waves Multiple Choice Questions with Answers. MCQ Questions Class 11 Physics Waves with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Physics Waves MCQs with Answers to know their preparation level.
Students who are searching for NCERT MCQ Questions for Class 11 Physics Waves with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 11 Physics with Answers. You can also verify your answers from our provided MCQ Class 11 Physics Waves with Answers. So, ace up your preparation with MCQ of Chapter 15 Physics Objective Questions.
MCQ Questions Class 11 Physics Waves with Answers - Set - 5
Question 1:
A closed organ pipe (closed at one end) is excited to support the third overtone. It is found that air in the pipe has
(a) three nodes and three antinodes
(b) three nodes and four antinodes
(c) four nodes and three antinodes
(d) four nodes and four antinodes.
Correct Answer – (D)
Question 2 :
A stationary wave is represented by y = Asin (100t) cos (0.01x), where y and A are in millimetres, t is in seconds and x is in metres. The velocity of the wave is
(a) 104 m/s
(b) not derivable
(c) 1 m/s
(d) 102 m/s
Correct Answer – (A)
Question 3 :
The length of a sonometer wire AB is 110 cm. Where should the two bridges be placed from A to divide the wire in 3 segments whose fundamental frequencies are in the ratio of 1 : 2 : 3 ?
(a) 60 cm and 90 cm
(b) 30 cm and 60 cm
(c) 30 cm and 90 cm
(d) 40 cm and 80 cm
Correct Answer – (A)
Question 4 :
Standing waves are produced in 10 m long stretched string. If the string vibrates in 5 segments and wave velocity is 20 m/s, the frequency is
(a) 5 Hz A
(b) 10 Hz
(c) 2 Hz
(d) 4 Hz
Correct Answer – (A)
Question 5 :
In an open organ pipe, which harmonics are missing?
(a) even.
(b) odd.
(c) depends upon the length of the pipe.
(d) none of the above.
Correct Answer – (D)
MCQ Questions Class 11 Physics Waves with Answers
Question 6 :
A stretched string resonates with tuning fork frequency 512 Hz when length of the string is 0.5 m. The length of the string required to vibrate resonantly with a tuning fork of frequency 256 Hz would be
(a) 0.25 m
(b) 0.5 m
(c) 1 m
(d) 2 m
Correct Answer – (C)
Question 7 :
A wave of frequency 100 Hz travels along a string towards its fixed end. When this wave travels back, after reflection, a node is formed at a distance of 10 cm from the fixed end. The speed of the wave (incident and reflected) is
(a) 20 m/s
(b) 40 m/s
(c) 5 m/s
(d) 10 m/s.
Correct Answer – (A)
Question 8 :
A cylindrical tube, open at both ends has fundamental frequency f in air. The tube is dipped vertically in water, so that half of it is in water. The fundamental frequency of air column is now
(a) f /2
(b) 3f /4
(c) 2f
(d) f
Correct Answer – (D)
Question 9 :
A standing wave having 3 nodes and 2 antinodes is formed between two atoms having a distance 1.21 Å between them. The wavelength of the standing wave is
(a) 6.05 Å
(b) 2.42 Å
(c) 1.21 Å
(d) 3.63 Å
Correct Answer – (C)
Question 10 :
A source of sound moves towards a stationary listener. The apparent pitch of the sound is found to be higher than its actual value. This happens because
(a) wavelength of the sound increases.
(b) wavelength of the sound decreases.
(c) the number of waves received by the listener decreases.
(d) the number of waves received by the listener increases.
Correct Answer – (B)
- NCERT Solutions Class 11 Physics Chapter 1 : Physical world
- NCERT Solutions Class 11 Physics Chapter 2 : Units And Measurements
- NCERT Solutions Class 11 Physics Chapter 3 : Motion In A Straight Line
- NCERT Solutions Class 11 Physics Chapter 4 : Motion In A Plane
- NCERT Solutions Class 11 Physics Chapter 5 : Laws of Motion
- NCERT Solutions Class 11 Physics Chapter 6 : Work Energy Power
- NCERT Solutions Class 11 Physics Chapter 7 : Rotational-Motion
- NCERT Solutions Class 11 Physics Chapter 8 : Gravitation
- NCERT Solutions Class 11 Physics Chapter 9 : Mechanical Properties of Solids
- NCERT Solutions Class 11 Physics Chapter 10 : Mechanical Properties of Fluids
- NCERT Solutions Class 11 Physics Chapter 11 : Thermal Properties of Matter
- NCERT Solutions Class 11 Physics Chapter 12 : Thermodynamics
- NCERT Solutions Class 11 Physics Chapter 13 : Kinetic Theory
- NCERT Solutions Class 11 Physics Chapter 14 : Oscillations
- NCERT Solutions Class 11 Physics Chapter 15 : Waves
