When the direction of a wave is parallel to the motion of its particles, the wave is called......wave.

The time to complete a cycle of wave is called.....

In the expression T = 1/f, the 'f' represents

The frequency of a wave is 100Hz, what is its period?

What Is the velocity of a wave of frequency 200Hz and wave length 0.1m?

The image in a plane mirror is always

The changes in the direction, wave length and speed when wave through different media is

All these are characteristics of waves except

The angle of incident on a plane mirror is 40`, what is the angle of reflection?

The height of image formed in a plane mirror is 16 cm, the object height will be

The 10th element in the periodic table is

Sodium is found in group 1 of the periodic table because

Which of these bonding involves a transfer of electron

The group in the periodic table is divided into......columns

The group in periodic table that is referred to as halogen is in

The atom of nitrogen has 7protons, how many electrons has it?

The atom of sodium has one electron in its outermost shell and three shells in total. Which period will it be found?

The type of bonding where only one participant donate electron is called

Another name for ionic bonding is.....bonding.