What is the code for ‘waited’ in the code language?

Energy that is produced commercially from coal is called –

The colour of sky appears blue due to –

The Pointing vector of electromagnetic waves has the same dimensions as that of:

The reason for a swimming pool to appear less deep than the actual depth is –

The instrument used to see the distant objects on the Earth is –

Which of the following electromagnetic waves are used for detection like Geiger tubes?

The order of wavelengths for ordinary light is:

The mass density of Kerosene is:

Which of the following statement is/are true?

I. The materials which allow heat to pass through them easily are conductors of heat.