In 2014 Nobel Prize in Physics has been awarded for the invention of what ? a) CCD Sensor b) Blue light emitting diodes c) Robotic Exoskeleton D) Graphene

Ques: In 2014 Nobel Prize in Physics has been awarded for the invention of what ?
a) CCD Sensor
b) Blue light emitting diodes
c) Robotic Exoskeleton
D) Graphene

Description: 
In a CCD image sensor, pixels are represented by p-doped MOS capacitors. These capacitors are biased above the threshold for inversion when image acquisition begins

A light-emitting diode (LED) is a two-lead semiconductor light source. It is a basic pn-junction diode, which emits light when activated.When a fitting voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons

A powered exoskeleton, also known as powered armor, exoframe, or exosuit, is a mobile machine consisting primarily of an outer framework (akin to an insect's exoskeleton) worn by a person, and powered by a system of motors or hydraulics that delivers at least part of the energy for limb movement.

Graphene is pure carbon in the form of a very thin, nearly transparent sheet, one atom thick. It is remarkably strong for its very low weight

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