Which branch of science plays an important role in the development of technology and engineering ?
Correct answer: B. Physics
- A. Chemistry
- B. Physics
- C. Geology
- D. Biology
Explanation
Physics explains matter, energy, forces and their interactions, providing the principles used in machines, structures, electronics and other technologies. Chemistry is the most likely alternative because engineering materials often involve chemical processes, but the broad laws underlying technology are chiefly physical.
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About Quantum Theory and Radiation
Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.
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