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A particle moves along the x-axis such that its velocity varies with position as

v(x) = k√(a² – x²)

The force of attraction between two masses is called —  

Which of the following phenomena establishes the transverse nature of light waves?

What is the working principle of an electric transformer?

A coil with N turns and area A is placed in a magnetic field varying as B = B₀·e^–αt. What is the induced EMF at time t = 0?

Which of the following is not a natural polymer?

The order of wavelengths for ordinary light is:

A ray of light travels from glass (n=1.5) to air (n=1). For which angle of incidence will the ray just graze the surface (total internal reflection limit)?

If the Earth stopped rotating, what would happen to the apparent value of gravity (g) at different locations?