Alauddin Khalji introduced the 'Chehra' system (identity cards for soldiers) and 'Dagh' system (branding of horses) to ensure military efficiency and prevent corruption.
______ is an important metal to form amalgam.
Which medium cannot propagate sound waves?
For a wave, wavelength divided by the time period equals ________.
What term describes the rate of change of velocity?
Twinkling of the Stars is due to the phenomenon of
‘Therm' is the unit of –
The SI unit of Pressure is
S.I unit of Inductance is
The Dimensions of “G” (Universal Gravitation Constant) is:
What Type of Mirror Is Commonly Used as Rear-View Mirrors in Vehicles?
