Question: Select the correct output of the following code:
event = "G20 Presidency@2023"
L = event.split(' ')
print(L[::-2])
event = "G20 Presidency@2023"
L = event.split(' ')
print(L[::-2])
Show Hint
'G20'
'Presidency@2023'
'G20'
'Presidency@2023'
The Correct Option is C
Solution and Explanation
<div class="question">
<strong>Question:</strong> The split() method divides the string "G20 Presidency@2023" into a list of substrings based on spaces, resulting in:
<pre><code>
L = ["G20", "Presidency@2023"]
</code></pre>
The slicing operation L[::-2] works as follows:
<ul>
<li>[::-2] reverses the list and selects every second element.</li>
<li>Starting from the end, L[::-2] picks "G20".</li>
</ul>
Thus, the output is: ['G20'].
</div>
Top Questions on Commands and Requests
- Write a user-defined function in Python named showInLines() which reads contents of a text file named STORY.TXT and displays every sentence in a separate line. Assume that a sentence ends with a full stop (.), a question mark (?), or an exclamation mark (!). Example:
If the content of the file STORY.TXT is:
Our parents told us that we must eat vegetables to be healthy. And it turns out, our parents were right! So, what else did our parents tell?
Then the function should display:
Our parents told us that we must eat vegetables to be healthy.
And it turns out, our parents were right!
So, what else did our parents tell?
- CBSE CLASS XII - 2024
- Computer Science
- Commands and Requests
- Predict the output of the following code:
def callon(b=20, a=10): b = b + a a = b - a print(b, "#", a) return b x = 100 y = 200 x = callon(x, y) print(x, "@", y) y = callon(y) print(x, "@", y)- CBSE CLASS XII - 2024
- Computer Science
- Commands and Requests
A tuple named subject stores the names of different subjects. Write the Python commands to convert the given tuple to a list and thereafter delete the last element of the list.
- CBSE CLASS XII - 2024
- Computer Science
- Commands and Requests
Write a user-defined function in Python named showGrades(S) which takes the dictionary
Sas an argument. The dictionaryScontains Name: [Eng, Math, Science] as key:value pairs.
The function displays the corresponding grade obtained by the students according to the following grading rules:
\[ \begin{array}{|c|c|} \hline \textbf{Average of Eng, Math, Science} & \textbf{Grade} \\ \hline \geq 90 & A \\ \hline < 90 \text{ but } \geq 60 & B \\ \hline < 60 & C \\ \hline \end{array} \]
Example: Consider the following dictionary: \[ S = \{\text{"AMIT"}: [92, 86, 64], \text{"NAGMA"}: [65, 42, 43], \text{"DAVID"}: [92, 90, 88]\} \] The output should be: \[ \text{AMIT} - B \\ \text{NAGMA} - C \\ \text{DAVID} - A \]- CBSE CLASS XII - 2024
- Computer Science
- Commands and Requests
- Expand the following terms:
XML, PPP Give one difference between circuit switching and packet switching.- CBSE CLASS XII - 2024
- Computer Science
- Commands and Requests
Questions Asked in CBSE CLASS XII exam
- Find the general solution of the differential equation \[ y\log y\,\frac{dx}{dy}+x=\frac{2}{y}. \]
- CBSE CLASS XII - 2026
- Differential Equations
- A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:
- CBSE CLASS XII - 2026
- Electromagnetic induction
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following:
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).
- CBSE CLASS XII - 2026
- Integration
- Consider a cylindrical conductor of length \( l \) and area of cross-section \( A \). Current \( I \) is maintained in the conductor and electrons drift with velocity \( \vec{v}_d \, (|\vec{v}_d| = \frac{eE}{m} \tau) \), where symbols have their usual meanings. Show that the conductivity of the material of the conductor is given by \[ \sigma = \frac{n e^2 \tau}{m}. \]
- CBSE CLASS XII - 2026
- Current Density
- The painting Hazrat Nizamuddin Auliya and Amir Khusro belongs to which sub-school of Deccan Miniature?
- CBSE CLASS XII - 2026
- Indian Miniature Paintings and Museums