Explanation

The majority carriers in a p-type semiconductor are holes. 

When a semiconductor material is doped with trivalent impurity atoms (like Boron), it creates "holes" where electrons are missing, effectively giving a positive charge.

These holes then become the majority charge carriers, meaning they are the primary contributors to electrical current flow in the material. 

Explanation

 An optical instrument uses lenses or mirrors to manipulate light, 

A telescope uses lenses or mirrors to collect and focus light from distant objects, making them appear closer and larger. 

Explanation

Explanation

Total mechanical energy (E) = (1/2) × m × ω^2 × A^2

ω = 2π / T = 2π / 0.20 s = 10π rad/s

m = 40 g = 0.04 kg

A = 2.0 cm = 0.02 m

E = (1/2) × 0.04 kg × (10π rad/s)^2 × (0.02 m)^2

= 8.0 × 10^-3 J

Explanation

Explanation

The LTI (Linear Time-Invariant) system is characterized by its impulse response.

This response fully describes the system's behavior and can be used to determine the system's response to any input.

Explanation

A short circuit is an electric circuit offering little or no resistance to the flow of electrons.

It often causing excessive current flow and potential damage.

It occurs when a direct path is created, bypassing the intended load.

Explanation

Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature.

This allows for highly efficient electrical conduction and magnetic field exclusion.

Explanation

• Biomass energy is derived from organic matter such as wood, crops, and waste.
• It is used as a fuel to produce heat energy.
• This heat energy can be used for various purposes, including heating homes, water, and air, as well as powering industrial processes and generating electricity.

Explanation

• Apollo 11 was the mission that successfully landed astronauts.
• Neil Armstrong and Buzz Aldrin on the moon on July 20, 1969.