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.