Who discovered the neutrons?
Which of the following physical quantities is not conserved in inelastic collisions?
When hard water is evaporated completely, the white solid remains in the container. It may be due to the presence of
1. Carbonates of Ca and Mg
The shape of methane (CH₄) molecule is:
In blood, platelets are required for
The SI unit of force is:
Which element is the constituent of the chlorophyll molecule?
A mass m is suspended from a spring of spring constant k and oscillates with amplitude A. The maximum velocity during oscillation is:
A particle of mass 0.2 kg is rotated in a circle of radius 0.5 m at 4 rad/s. Its centripetal force is:
Speed of sound in air is unaffected by change in :