Explanation

Laser amplification involves increasing light intensity through stimulated emission inside a resonant optical cavity.

The resonance causes photons to bounce back and forth, stimulating more emissions and amplifying the light.

Explanation

To find the area of the border, let's first find the area of the entire rectangle and the area of the inner rectangle.

Area of entire rectangle = Length × Width

= 20 × 10

= 200 cm²

The inner rectangle's dimensions are:

Length = 20 - 2 × 2 = 16 cm

Width = 10 - 2 × 2 = 6 cm

Area of inner rectangle = 16 × 6

= 96 cm²

Area of border = Area of entire rectangle - Area of inner rectangle

= 200 - 96

= 104 cm²

Explanation

Largest is the superlative form, showing the highest degree of size.

It is used to compare one thing against all others in a group.

Explanation

Formal drama involves scripted performances where students follow written texts.

It is controlled by the teacher, with little room for spontaneity.

Explanation

gets() can accept a full string including white space characters until a newline is encountered.

In contrast, getch() and getche() only accept a single character input.

Explanation

HTML provides 6 levels of heading tags: <h1> to <h6>, with <h1> being the largest and most important.

These tags are used to define headings and organize content hierarchically on web pages.

Explanation

Thinking is not a computer operation because computers do not possess consciousness or reasoning like humans.

Computers perform Input, Processing, Storage, and Output, but they follow pre-defined instructions.

Explanation

ROM (Read-Only Memory) is non-volatile.

This meaning it retains data even when the power is turned off.

RAM is volatile.

Explanation

Web 2.0 emphasizes human collaboration, user-generated content, and social interaction through platforms like social media, blogs, and wikis.

It focuses on a more dynamic and interactive web experience compared to the earlier, static Web 1.0.

Explanation

Professional Development refers to a teacher’s efforts to improve and manage their teaching skills, knowledge, and practices.

It includes ongoing learning, training, and reflection to stay effective and current in the profession.