The energy of an object due to its specific position or configuration is known as:
A. Mechanical Energy
B. Potential Energy
C. Thermal Energy
D. Kinetic Energy
Answer: Option B
Solution (By JKSSB Mock Tests)
Potential energy is the stored energy an object possesses due to its position relative to other objects, stresses within itself, its electric charge, or other factors. For example, water stored in a dam has gravitational potential energy, and a compressed spring has elastic potential energy.
Explanation:
Candela (cd) is one of the seven SI base units, measures luminous intensity. Lumen is luminous flux (lm = cd·sr). Lux is illuminance (lx = lm/m²). Watt is power.
Explanation:
Newton's Law of Cooling is a practical approximation stating that the rate of heat loss of a body is directly proportional to the difference in temperatures between the body and its immediate environment, provided this temperature difference is relatively small. The equation is dQ/dt = -k(T_body - T_surroundings).
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