Question

Which of the following does not depict the correct link between technology and physics. ?

• A. Photocell - Photoelectric effect
• B. Rocket propulsion - Laws of thermodynamics
• C. Optical fibres - Total internal reflection of light
• D. Fusion test reactor - Magnetic confinement of plasma

Answer 1

The correct option is B Rocket propulsion - Laws of thermodynamics

$\text{Solving by analyzing the options}$

Option $B$: Rocket propulsion is based on Newton's law of motion and not on the laws of thermodynamics.

Therefore, statement B is saying the incorrect link between technology and physics.

Hence option B is correct.

Whereas rest three options has correct link as explained below:

• Photocells are based on the Photoelectric effect of light.

• Optical fibers are based on the important property of light which is a total internal reflection of light.
• The fusion test reactor is functioning with magnetic confinement of the plasma. The fusion test reactor was a popular experiment related to magnetic plasma.