The blue colour of sky is due to the phenomenon of_____?

The antiparticle of the electron is called as_____?

Frequencies emitted by a straight instrument can be studied by_____?

The number of electric lines of force per unit area at right angles to the lines is proportional to ______?

The colour which is deviated more than the other colours is____?

Clinical thermometer measure temperature in very short range of____?

The velocity of souna at 20°C is_____?

Ice is the ____ form of water.

The terminal velocity for a skydiver with an unopened parachute is about?

The mass of the body is different from its weight because___?

The bases of cooking vessels are painted ___ in order to absorb more heat.