 # Viva voceSimple pendulum1.What is a simple pendulum?2. What is a seconds pendulum?3.What is the nature of oscillations of simple pendulum?4.What is the length of the simple pendulum?5.Can we conduct simple pendulum experiment at the centre of earth ?6.What is the shape of the l-feT graph of simple pendulum?7.What is the shape of the l- T^2 graph of a simple pemdulum ?8.Does a simple pendulum stop finally? Why?9.When is the velocity of bob is maximum and when it is minimum?Surface tension1.Define surface tension?2.How surface tension of water is affected by temperature of water?3.If the diameter of the capillary tube is doubled what will happen to riseof liquid ?4.What are cohessive and adhessive forces ? Give examples5.what is the direction of the surface tension?Velocity sound1.Define resonance ?2.Out of solids , liquids, and gasses through which medium soundpropagate more ?3.Either the sound waves are longitudinal or transverse?4.Waht are transverse waves ?5.What are longitudinal waves?6.What is the difference between mechanical and non mechanical waves ?Sonemeter1.state the laws of strings ?2.What type of waves will be formed in the sonometer experiment ?3.What is resonance ?BOYLES LAW1.state boyles law ?2.What is the shape of the (h-l)/l graph ?3.How can you find the atmospheric pressure from h-l)/l graph?4.What is the shape of the P-l graph?5.At what conditions the Boyles law is true ?6.In the verification of Boyles law it is proved that P*l = constant insteadof P*V = constant . Why ?7.The air coloumn should not be touched with the hand during theexperiment . Why?8.For every change of reservior wait for some time and note the reading .Why?Helical spring1.what are the units of force constant?2.Either spring force is conservative or not ?3.What is simple homonic motion ?4.What is periodic motion ?5.What is oscilatory motion ?6.All periodic motions are hormonic .is this statement true .why?explainwith example7.find out least count of screw guage vernier and spherometer?All the bestvishnu.........

6 years ago
The ratio between the crest and trough is called transverse waves….….….….….….….….….….….….….….….….….….….….….….…...
6 years ago
Time taken for one oscillation is called time perios...............................................................................................
6 years ago
A seconds pendulum is a pendulum whose period is precisely two seconds; one second for a swing in one direction and one second for the return swing, a frequency of 1/2 Hz. A pendulum is a weight suspended from a pivot so that it can swing freely.
6 years ago

7.least count of vernier callipers is 0.01cm.
least count of screw guage is 0.001cm
least count of spherometer is 0.01mm
6 years ago
6.L-T GRAPH SHAPE IS STRAIGHT LINE.IN SIMPLE PENDULUM EXPERIMENT WE DRAW  THE LIKE THAT SHAPE GRAPH. THIS GRAPH IS VERY IMPORTANT IN EXPERIMENT.

6 years ago
the p-l graph shape is parabola curve.,.,.,.,.,
and the (h-1)/l graph shape is a slope which passes through the y-axis..,
6 years ago
the tension of a surface film of a liquid caused by attraction of particles in the surface layer by the bulk of the liquid ,which tends to minimise the surface area is called surface tension.
2 years ago
For example, the motion of the hands of a clock is a periodic motion, the rocking of a ... Also, all simple harmonic motions are periodic in nature, but all periodic ... and B are true and R is not the correct explanation of A. A is true, and R is false.