The question asks to identify the first Indian woman to successfully swim across the English Channel. This is a factual recall question related to Indian sports history.
Correct Option: B) Arati Saha was the first Indian woman to swim across the English Channel. She accomplished this historic feat on 29 September 1959, becoming the first Asian woman to successfully cross the Channel.
The question asks for a required characteristic of an on-line real-time system. We need to understand what defines such a system and then evaluate the given options.
Correct Option: C) no delay in processing. A fundamental characteristic of an on-line real-time system is its ability to process information and respond with minimal or no perceptible delay, ensuring that operations occur within critical time constraints.
The question asks about the selection capabilities within a worksheet, typically referring to spreadsheet software like Microsoft Excel. We need to identify what elements can be selected in such an environment.
Correct Option: D) all of these
The problem asks us to find the missing number in a given series. We need to identify the pattern or rule governing the sequence of numbers to determine the next term.
Therefore, the missing number is 36.
Correct Option: D) 36
The question asks to identify the animal whose skin is typically used to produce Morocco leather. This requires knowledge of common leather types and their origins.
Correct Option: C) Goat
The field size for a city is determined by :
the shortest city name that will be entered
the longest city name in India
the longest city name that will be entered in the database
ten characters more than the longest city name that will be entered in the database
When determining the field size for a text-based database entry, such as a city name, it is crucial to allocate enough space to accommodate all possible entries while also considering future flexibility and potential data entry errors. The field size should ideally be slightly larger than the absolute maximum expected length to prevent truncation and allow for minor variations or additions.
D) ten characters more than the longest city name that will be entered in the database. This option ensures that all expected city names can be stored without truncation. The additional ten characters provide a practical buffer for potential data entry errors, future longer city names, or minor variations, which is a good practice in database design to ensure data integrity and flexibility.
\(\sqrt{\frac{0.49}{0.25}}\) + \(\sqrt{\frac{0.81}{0.36}}\) = ?
\( \frac{9}{10} \)
2 \( \frac{9}{10} \)
7 \( \frac{9}{10} \)
9 \( \frac{9}{10} \)
The problem requires us to calculate the sum of two square roots involving decimal numbers. The strategy is to convert the decimal numbers into fractions, simplify them, take their square roots, and then add the resulting fractions.
First, convert the decimal numbers inside the square roots into fractions.
\[ 0.49 = \frac{49}{100} \]\[ 0.25 = \frac{25}{100} \]\[ 0.81 = \frac{81}{100} \]\[ 0.36 = \frac{36}{100} \]Substitute these fractions back into the original expression:
\[ \sqrt{\frac{0.49}{0.25}} + \sqrt{\frac{0.81}{0.36}} = \sqrt{\frac{\frac{49}{100}}{\frac{25}{100}}} + \sqrt{\frac{\frac{81}{100}}{\frac{36}{100}}} \]When dividing fractions, we can multiply by the reciprocal of the denominator. In this case, the denominators (100) cancel out.
\[ \sqrt{\frac{49}{25}} + \sqrt{\frac{81}{36}} \]Now, take the square root of the numerator and the denominator for each term.
\[ \sqrt{\frac{49}{25}} = \frac{\sqrt{49}}{\sqrt{25}} = \frac{7}{5} \]\[ \sqrt{\frac{81}{36}} = \frac{\sqrt{81}}{\sqrt{36}} = \frac{9}{6} \]The fraction \(\frac{9}{6}\) can be simplified by dividing both numerator and denominator by their greatest common divisor, which is 3.
\[ \frac{9}{6} = \frac{9 \div 3}{6 \div 3} = \frac{3}{2} \]Now, add the two simplified fractions:
\[ \frac{7}{5} + \frac{3}{2} \]The least common multiple (LCM) of 5 and 2 is 10. Convert both fractions to have a denominator of 10.
\[ \frac{7}{5} = \frac{7 \times 2}{5 \times 2} = \frac{14}{10} \]\[ \frac{3}{2} = \frac{3 \times 5}{2 \times 5} = \frac{15}{10} \]\[ \frac{14}{10} + \frac{15}{10} = \frac{14 + 15}{10} = \frac{29}{10} \]The improper fraction \(\frac{29}{10}\) can be converted to a mixed number.
\[ \frac{29}{10} = 2 \text{ with a remainder of } 9 = 2\frac{9}{10} \]B) \(2 \frac{9}{10}\) is the correct result obtained after performing all the calculations.
This is a letter series question. We need to identify the pattern in the given pairs of letters to determine the next pair. We will analyze the position of each letter in the English alphabet.
Correct Option: D) FL
The question asks about the fundamental basis of Boolean Algebra. We need to understand what Boolean Algebra is and what concepts it primarily deals with.
B) logic — Boolean Algebra is fundamentally based on logic. It provides a mathematical framework for logical reasoning, where variables represent logical statements that can be either true or false, and operations represent logical connectives (AND, OR, NOT). This makes it the mathematical foundation of digital circuit design and computer science.
Which of the following is true about parallel transmission ?
It involves simultaneous transmission of eight bits
The speed is quoted in bits per second
It is slower than serial transmission
None of these
The question asks about the characteristics of parallel transmission. We need to evaluate each option based on the fundamental principles of parallel data transfer.
A) It involves simultaneous transmission of eight bits. — This is a correct description of a common form of parallel transmission, where a byte (8 bits) is sent concurrently over 8 separate lines.