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Physics Class 11 Viva Questions and Answers

Physics viva questions are questions intended to examine a student’s understanding of the core concepts behind each physics experiment.

Concrete knowledge about each fundamental topic behind the experiments is the best way to prepare for practical lab exams. If students are able to answer questions regarding the fundamentals of the experiment, then they will be able to attend the practical test without any serious hassles. Viva questions will extensively motivate students to study the fundamental ideas behind each experiment.

Viva questions have a different approach compared to numerical and analytical questions. Such questions do not attempt to ask the fundamental questions related to the core concepts behind the experiments. In order to answer the complex and application-level questions, one should get a hold of all the basic concepts. This is what viva questions bring. It challenges the basic awareness of students regarding the inherent concepts behind the lab experiments.

Viva questions demand more than just simple recall. Such questions force students to cover all the core topics that drive each practical experiment.

Here is the list of questions and answers on various core physics concepts to help you understand the fundamentals in detail.

To measure diameter of a small spherical/cylindrical body using Vernier Callipers.

To measure the dimensions of a given regular body of known mass using a Vernier Callipers and hence find its density.

To measure internal diameter and depth of a given beaker/calorimeter using a Vernier Callipers and hence find its volume.

To measure diameter of a given wire using screw gauge.

To measure thickness of a given sheet using screw gauge.

To determine volume of an irregular lamina using screw gauge.

To determine radius of curvature of a given spherical surface by a spherometer.

To determine the mass of two different objects using a beam balance.

Using a simple pendulum, plot its L-T2 graph and use it to find the effective length of second’s pendulum.

To study variation of time period of a simple pendulum r of a given length by taking bobs of same size but different masses and interpret the result.

To study the relationship between force of limiting friction and normal reaction and to find the co-efficient of friction between a block and a horizontal surface.

To find the downward force, along an inclined plane, acting on a roller due to gravitational pull of the earth and study its relationship with the angle of inclination θ by plotting graph between force and sin θ.

To determine Young’s modulus of elasticity of the material of a given wire.

To find the force constant of a helical spring by plotting a graph between load and extension.

To study the variation in volume with pressure for a sample of air at constant temperature by plotting graphs between P and V, and between P and 1/V.

To determine the surface tension of water by capillary rise method.

To determine the coefficient of viscosity of a given viscous liquid by measuring terminal velocity of a given spherical body.

To study the relationship between the temperature of a hot body and time by plotting a cooling curve.

To determine specific heat capacity of a given solid by method of mixtures.

To study the relation between frequency and length of a given wire under constant tension using sonometer.

To study the relation between the length of a given wire and tension for constant frequency using sonometer.

To find the speed of sound in air at room temperature using a resonance tube by two resonance positions.

To find the weight of a given body using the parallelogram law of vectors.

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