Question Discussion & Solution

The correct answer is Save As.

Key Points

Save and Save As are the two options for saving a file in Word.

• These choices operate in a similar manner, with a few key distinctions.

Save:

• You'll use the Save command to save your changes when you're creating or editing a document.
• The majority of the time, you'll use this command.
• You'll only have to specify a file name and location the first time you save a file.
• After that, you may save it with the same name and location by using the Save command.

Save As:

• Save As command will be used to make a copy of a document while maintaining the original.
• When you choose Save As, you'll need to give the cloned version a new name and/or location.

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The correct answer is Select, where, group by, having.

Additional Information

Six Operations to Order: SELECT, FROM, WHERE, GROUP BY, HAVING, and ORDER BY. Because the database executes query components in a specific order,

SELECT select_list [ INTO new_table ]  [ FROM table_source ]

[ WHERE search_condition ]

[ GROUP BY group_by_expression ]

[ HAVING search_condition ]

[ ORDER BY order_expression [ ASC | DESC ] ]

Hence Option 4 is correct

The correct answer is Mirage.

• To a distant observer, the light appears to be coming from somewhere below the ground.
• The observer naturally assumes that light is being reflected from the ground, say, by a pool of water near the tall object.
• Such inverted images of distant tall objects cause an optical illusion to the observer.
• This phenomenon is called a mirage.
•  The optical illusion which occurs mainly in the desert during hot summer is based on the principle of TIR i.e total internal reflection.
• This type of mirage is especially common in hot deserts.

Additional Information

• Total Internal Reflection (TIR): When a ray of light goes from denser to the rarer medium it bends away from the normal and as the angle of incidence in denser medium increases, the angle of refraction in the rarer medium also increases and at a certain angle, angle of refraction becomes 90°, this angle of incidence is called critical angle (C).
• When the Angle of incidence exceeds the critical angle then the light ray comes back into the same medium after reflection from the interface. This phenomenon is called Total internal reflection (TIR).
• Conditions for TIR: 
  1. The ray must travel from denser medium to rarer medium.
  2. The angle of incidence 'i' must be greater than the critical angle C.

• Multiple Inheritance in C++ is one in which a class can inherit members from more than one class
• A class who inherit the property is derived class and class from whom it is inherited is base class or parent class

Example:

class X //base class

{

public:

 X() { cout << "X's constructor" ; }

};

 class Y //base class

{

public:

 Y() { cout << "Y's constructor "; }

};

 class C: public B, public A // Derived class: Multiple inheritance

{

public:

 Z() { cout << "Z's constructor" ; }

Words that can be formed using A, E, L and T are

LATE, TALE, LEAT, TEAL, TAEL, TELA