PHYSICS MAM JKC

 https://docs.google.com/presentation/d/1j7P5UxBoqhP4X9tjeTUIiOr96zd7jENVLAd_ExDpw38/edit?usp=sharing

https://forms.gle/nHERkAZTiF4zq3Z57

Law of conservation of energy is verified.  

https://docs.google.com/presentation/d/1aNJjkGACMxlmCQje34o_x7_SItOy-FTN1iaWV0J0AxE/edit?usp=drive_link

  https://docs.google.com/presentation/d/1xyIbOfF9uNXA3FdhN73-s4PkfU_gC6YPh3CQOuGXyqM/edit?usp=sharing

 https://docs.google.com/presentation/d/1NKV2ACokgl4zLLrl9fSHbYRKqRAQv9uYphKNx_QM2HQ/edit?usp=drive_link

  11 PHYSICS EXPERIMENT NO. 2 USE OF MICROMETER SCREW GAUGE Aim To measure 1) The diameter of a given wire and calculate its area of cross section 2) Thickness of glass plate. Apparatus: Screw gauge, wire, glass plate Diagram Formula  1. Least Count of the Screw Gauge= Smallest Division on Main Scale/Total No. Of Divisions On Circular Scale. L.C. Of MICROMETER SCREW GAUGE =0.1/10=0.01cm Observations 1. Determination of Least Count of the Screw Gauge a )Smallest division on main scale, S=1 mm. b)Number of full rotations given to screw, n=4 c)Distance moved by the screw on main scale, D=4 mm. d)Hence, pitch p=1 mm. e)Number of divisions on circular scale, N=100 f)Hence, least count, L.C.= 0.01 mm = 0.001 cm. Zero error = ----0----mm ---0---cm  

 $im To determine the radius of curvature of a spherical surface using a spherometer. Apparatus A spherometer, a plane glass plate mirror spherical mirror or lens or curved glass. Diagram:

  https://docs.google.com/presentation/d/1fYVravmzMLJNIwAgHlAMb4HesiC-Aym9j0CEiPgwCro/edit?usp=drive_link

https://docs.google.com/presentation/d/1uUkTXMwmHwJ_GtHSs28Car18-6XDoJNv1gcKSY1Uleo/edit?usp=drive_link

  Motion A change in the position of an object with respect to time. Motion is  described in terms of displacement, distance (scalar), velocity, acceleration, time and speed.     Types of motion:- 1) Rectilinear motion (1D)  2) Motion in Plane (2D)  3) Motion in Space (3D) Rectilinear Motion (1D) Only one coordinate axis (Ex: X-axis) along with time to describe the motion of a particle it is said to be in linear/straight line  motion or rectilinear motion. (motion along a straight line) Examples of Rectilinear Motion (1D) Ex:- Parade of soldiers,  2)A train moving on track,  3)Car moving on road etc 4) Rectilinear Propagation of Light 2) Motion in Plane (2D) The motion of a rigid body such that all its points move parallel to some fixed plane. Such motion is composed of translational motion together with rotational motion. Ex:- circular motion, projectile motion, etc An insect crawling on the wall of the room. Motion in Space(3D) The mot...

 

 

  Result  1. Volume of sphere 8.78..cm3 2. Volume of cylinder 3.77 cm3

 

  MCQs – Resonance Tube Experiment 1. The resonance tube experiment is used to determine: A. Speed of sound in solids B. Speed of sound in air C. Frequency of tuning fork D. Amplitude of sound waves Answer: B 2. Resonance occurs when: A. Two waves have different frequencies B. The natural frequency equals the forced frequency C. Amplitude becomes zero D. Sound gets absorbed Answer: B 3. In a resonance tube, the first resonance occurs when the air column length is: A. λ B. λ/4 C. λ/2 D. 2λ Answer: B 4. In the experiment, the second resonance occurs at air column length: A. 3λ/4 B. λ/2 C. λ D. 5λ/4 Answer: A 5. If the first resonance occurs at 18 cm and the second at 54 cm, the wavelength of sound is: A. 36 cm B. 72 cm C. 54 cm D. 18 cm Answer: A (Difference = 54 – 18 = 36 = λ/2 → λ = 72 cm? But first resonance gives λ/4 = 18 → λ = 72. Correct λ = 72 cm. Correct answer: B) Corrected: Answer: B 6. The end correction in resonance tube is due t...

  Experiment N0.5    Sonometer II : law of Tension Aim: To study relation between length of given wire & tension for constant frequency.   Experiment N0.5    Sonometer II : law of Tension Aim:  A  tuning fork of unknown frequency is given to you.  U sing a sonometer, determine the length of  the wire vibrating in Unison with a given  t uning fork for four different tension (T) and one  unknown tension. https://gemini.google.com/share/1dbacdbc6884 1. According to the law of tension, the frequency of a vibrating string is proportional to: A. √T B. T C. 1/T D. 1/√T Answer: A 2. If the tension of a sonometer wire is quadrupled, its frequency becomes: A. Half B. Double C. Four times D. Twice the square root Answer: B 3. The law of tension can be written as: A. f ∝ 1 T f \propto \frac{1}{\sqrt{T}} ​ ​ B. f ∝ T f \propto \sqrt{T} ​ C. f ∝ T 2                     ...

Result the graph of reciprocal of vibrating  length against n (frequency) is straight line hence law of vibrating length is verified. 1. In a sonometer, the frequency of vibration of the wire is inversely proportional to: A. Length B. Square root of tension C. Density D. Radius Answer: A 2. For a vibrating string in a sonometer, the fundamental frequency is given by: 3. The resonating length of the sonometer wire increases when: A. Tension increases B. Frequency of tuning fork decreases C. Mass per unit length decreases D. Length of the wire decreases. Answer: B 4. When the length of the vibrating segment of the wire is doubled, the fundamental frequency becomes: A. Doubled B. Halved C. Four times D. One-fourth Answer: B 5. The physical quantity kept constant during resonance in a typical sonometer experiment is: A. Length B. Tension C. Mass per unit length D. Both B and C Answer: D 6. If tension in the sonometer wire becomes four times , the frequenc...