12 Physics Activity Melde’s Experiment

-

 Activity  Melde’s  Experiment

Aim :- Arrange the tunning fork for parallel position. Take two different reading by changing the

tension and keeping the length of String constant. Write your conclusion.

Apparatus : Electronic vibrator , a light in extensible string ,pan , Fractional weight box ,etc.

Diagram:-



Observation :-
i. mass per unit length of string = m= 2.03 x10-3 g/cm
ii. Vibrating length of string =l =100cm.
iii. Mass of empty scale pan= mo= 3 g.





Melde’s Experiment & Stationary Waves – MCQs

1. Melde’s experiment is used to study:

A. Transverse waves only
B. Longitudinal waves only
C. Stationary waves in a stretched string
D. Sound waves in air
✔ Answer: C

2. In Melde’s experiment, stationary waves are produced due to:

A. Reflection of waves
B. Refraction of waves
C. Diffraction of waves
D. Interference of waves
✔ Answer: D

3. The vibrating length of the string between two consecutive nodes is:

A.λ 

 B.λ/4 

C.λ/2

D.λ

                                                                                                                                                                                                  C. 
 ✔ Answer: C

4. In Melde’s experiment, the frequency of the tuning fork is related to the frequency of the string by:

A. Equal to string frequency
B. Half of string frequency
C. Twice the string frequency
D. Independent of string frequency
✔ Answer: C

5. In stationary waves, the points of maximum amplitude are called:

A. Nodes
B. Antinodes
C. Crests
D. Troughs
✔ Answer: B

6. In Melde’s experiment, the string appears stationary because:

A. The string does not vibrate
B. Waves cancel each other completely
C. Two waves of equal frequency and amplitude travel in opposite directions
D. The tuning fork stops vibrating

✔ Answer: C

7. The velocity of a wave on a stretched string depends on:

A. Length of string only
B. Tension and mass per unit length
C. Amplitude only
D. Frequency only
✔ Answer: B

8. In Melde’s experiment, the tension in the string is increased by:

A. Increasing length of string
B. Adding weights to the hanger
C. Using thicker string
D. Changing tuning fork
✔ Answer: B

9. In stationary waves, there is no net transfer of:

A. Energy
B. Mass
C. Frequency
D. Time
✔ Answer: A

10. At a node of a stationary wave, the displacement of the particle is:

A. Maximum
B. Minimum
C. Zero
D. Variable

✔ Answer: C


https://wordwall.net/resource/104215202


Quiz


Comments

Post a Comment

Popular posts from this blog

2026 Preparation Strategy / Paper Pattern & Strategy

-
  2026 Paper Pattern & Strategy Chapter Marks (Without Option) Marks (With Option) Priority Rotational Dynamics 5 7 High (Derivations) Thermodynamics 5 7 High (Processes) Wave Optics 5 7 High (Diagrams) Mechanical Prop. of Fluids 5 7 High (Concepts) Electromagnetic Induction 5 7 High (AC/Lenz) Modern Physics  (Ch 14-16) 12 16 High (Scoring/Theory) The paper is designed for 70 Marks (Theory) and 30 Marks (Practicals). Question Type Number of Questions Total Marks Section A (MCQ & VSA) 10 MCQs + 8 VSA 18 Section B (Short Answer I) 8 out of 12 16 Section C (Short Answer II) 8 out of 12 24 Section D (Long Answer) 3 out of 5 12 Section A  (MCQ & VSA)      Page 3 - 6 Section B  (Short Answer I)     Page 7 - 10 Section C  (Short Answer II)     Page 11 - 20 Section D  (Long Answer)         Page 21 - 28 Section A:  MCQs & Very Short Answers (1 Mark each) Definitions: De...
Read more

PHYSICS11 4.Laws Of Motion

-
Image
PHYSICS11  Chapter No 4.Laws O f Motion Newton's first law: Statement every inanimate object continuous to be in a state of rest or of uniform uniform motion along a straight line unless it is acted upon by an external unbalance force. Newton second law: statement The rate of change of linear momentum of a rigid body is directly proportional to the applied (external unbalanced) force and takes place in the direction of force. Newton's third law statement To every action there is always an equal and opposite reaction. Inertial frame of reference Inertial frame of reference is a frame of reference in which Newton's laws of motion are verified. Non inertial frame of reference A frame of reference in which Newton's laws of motion are not verified. Kinematics In Which motion describe without it's cause. Dynamics In Which motion describe along with its cause. Contact force The force experienced by a body due to Physical contact is called contact force. Non contact ...
Read more