Step 1: Understanding the shortcut for closing a file.
In MS Word, the shortcut key to close a file is CTRL + W.
Step 2: Analyzing the options.
- (A) CTRL + F: This is used for finding text in a document, not for closing a file.
- (B) CTRL + W: This is the correct answer. CTRL + W is used to close the current document in MS Word.
- (C) CTRL + F7: This is used for opening the Word Options window, not for closing a file.
- (D) CTRL + F2: This is used to display the Print Preview, not for closing a file.
Step 3: Conclusion.
The correct answer is (B) CTRL + W.
A weight of $500\,$N is held on a smooth plane inclined at $30^\circ$ to the horizontal by a force $P$ acting at $30^\circ$ to the inclined plane as shown. Then the value of force $P$ is:
A steel wire of $20$ mm diameter is bent into a circular shape of $10$ m radius. If modulus of elasticity of wire is $2\times10^{5}\ \text{N/mm}^2$, then the maximum bending stress induced in wire is: