MCQ
A wound watch spring has $...........$ energy.
- AMechanical.
- BKinetic.
- ✓Potential.
- DKinetic and potential.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$(i)$ a body with large reflectivity is a poor emitter
$(ii)$ a brass tumbler feels much colder than a wooden tray on a chilly day
$(iii)$ the earth without its atmosphere would be inhospitably cold
$(iv)$ heating systems based on circulation of steam are more efficient in warming a building than those based on circulation of hot water