The colour of light with minimum wavelength in visible spectrum is MCQ with Answer and Explanation

Explanation:
Due to the inertia of motion, when an object is dropped from a moving vehicle (or balloon), it inherits the instantaneous velocity of that vehicle. Since the balloon was moving upwards at 10 m/s, the stone's initial velocity relative to the ground is 10 m/s upwards. It will rise slightly before falling.

Explanation:
KE = p²/2m. If p → 2p, KE' = 4KE, increase = 3KE = 300%. Frequently asked.

Explanation:
Power = 1 kW (1000 W). Time = 2 h. Energy = Power × time = 1 × 2 = 2 kWh. 1 kWh = 3.6 × 10⁶ J, but here answer in kWh. Commercial unit.