The mirror used by a dentist to examine the teeth of patients is______?
At the time of short circuit, the current in the circuit______?
Noise and music differ in their___?
When a bar magnet is cut into two equal halves, the pole strength of each piece____?
What is nano technology?
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____?