Question Discussion & Solution

The correct answer is Digital Camera.

Key Points

• An input device is any hardware device that sends data to a computer, allowing us to interact with and control it.
• For instance- Keyboard, Mouse, Joy Stick, Light pen, Track Ball, Scanner, Graphic Tablet, Microphone.
• A digital camera is an input device that captures images (and sometimes video) digitally.
• Digital cameras use an image sensor chip to capture the image.
• However, it can also be used as an output device. The digital camera can send pictures to our computer.
• An output device is any hardware device used to send data from a computer to another device or user.
• Examples of output devices are-
  • monitors and projectors (video), headphones and speakers (audio), or printers and plotters (physical reproduction in the form of text or graphics).

Etymology is the study of origin of words; similarly Cosmology is study of origin of Universe.

The correct answer is Bookmark.

• A Chrome Internet browser, a method of saving web page addresses for quick access is Bookmark.

Key Points

• Bookmark
  • “Bookmark” refers to links to sites that we store for easy access later.
  • A bookmark is a saved shortcut that directs your browser to a specific webpage.
  • It stores the title, URL, and favicon of the corresponding page.
  • Saving bookmarks allows you to easily access your favourite locations on the Web.

Additional Information

• Proxy Setting
  • ​A proxy server acts as a gateway between you and the internet.
  • It’s an intermediary server separating end users from the websites they browse.
• Clear Cache
  • When we use a browser it saves some information from websites in its cache and cookies.
  • Clearing them fixes certain problems, like loading or formatting issues on sites.
• Delete history
  • Windows short cut to delete history:
    • CTRL+SHIFT+DEL

CONCEPT:

• Electric Power: The rate at which electrical energy is dissipated into other forms of energy is called electrical power i.e.,

\(P = \frac{W}{t} = VI = {I^2}R = \frac{{{V^2}}}{R}\)

Where V = Potential difference, R = Resistance and I = current.

EXPLANATION:

• Mathematically power can be written as,

\(\Rightarrow P = \frac{W}{t} = VI \)

If, W = 1 J and t = 1 sec, then P = 1 watt

• Thus the power of an electric circuit is said to be one watt or 1 ampere - volt if one joule of energy is consumed in one second. Therefore option 1 is correct.

Given code language:

'nee muk pic' means 'grave and concern';
'ill dic so' means 'every body else'; and
'tur muk so' means 'body and soul'.

So we can decode the following words:

muk - and

so' - body

'tur - soul

Proceeding ahead accordingly, the code for 'every' is either 'ill' or 'dic' and the code for 'concern' is either 'nee' or 'pic'.