Sound — Physics STD 10 — Question

What do you understand by mechanical energy?

Name the material commonly used for the manufacturing of solar cells.

Can a transverse wave travel in air?

Which of the two prism, A made of crown glass and B made of flint glass, deviates a ray of light more?

Explain, why the potential difference across the terminals of a cell is more when the cell is not in use than it is when the cell is being used.

Which colour of white light is deviated by a glass prism the most and which the least?

Name the type of energy possessed by a body due to a change in configuration.

If white light is used in same way what change is expected in the emergent beam?

Write down the relationship between the critical angle and the refractive index of the medium.

What should be the angle between the directions of the displacement and the applied force so that the work done is zero?