Question Discussion & Solution

The correct answer is Ctrl+A

To select the entire document the keyboard shortcut CTRL+A is used. ​Additional Information

Word shortcut keys

• Ctrl + A -- Select all contents of the page.
• Ctrl + B -- Bold highlighted selection.
• Ctrl + C -- Copy selected text.
• Ctrl + X -- Cut selected text.
• Ctrl + N -- Open new/blank document.
• Ctrl + O -- Open options.
• Ctrl + P -- Open the print window.
• Ctrl + F -- Open find box.

All are mammal except Lizard.

The correct answer is Drag and Drop.

• The action of using the mouse to move an item on the computer screen to a new location is called Drag and Drop.
• Drag and drop is a common action performed within a graphical user interface that involves moving the cursor over an object, selecting it, and moving it to a new location.
• While using a mouse, we can drag and drop an object by clicking the mouse button to select an object, then moving the mouse while keeping the mouse button pushed down. This is called "dragging" the object.
• After moving the object where we want to place it, we can lift up the mouse button to "drop" the object in the new location. 
• Copy and paste are commands in a computer user interface and are one method of transferring data from one location to another. It creates a duplicate in the new location and enables simple data replication.
• Cut removes the item from its current location and places it into the clipboard. Paste inserts the current clipboard contents into the new location.
• Plug and Play is a phrase used to describe devices that work with a computer system as soon as they are connected.

CONCEPT:

Force:

• The interaction which after applying on a body changes or try to changes the state of rest or state of motion is called force.
• It is denoted by F. The SI unit of force is Newton (N).

Force (F) = Mass (m) × acceleration (a)

• If more than one force is acting on a body, then the effect on the body is due to the net force.
• A stationary object on which no force is acting remains stationary.
• An object in motion continues to move with the same speed and direction when no force is acting on the object. This is Newton’s first law of motion. 

​CALCULATION:

Given:

Force = 20 N

Acceleration (a) = 2 m/s2

⇒ Force (F) = m a 

⇒ m = F/a = 20/2 = 10 kg.

So, option 4^th is correct.

The correct answer is Barmer - Jalore.

Key Points

• Barmer-Jalore are major bajra producing districts.

Additional Information