Correct Answer: Zinc oxide

Solution : Correct Answer is Zinc oxide

Philosopher's wool refers to the chemical zinc oxide (ZnO). Alchemists would burn zinc in the air and collect the residue, which developed into white woolly tufts, as part of their rituals.The philosopher's wool is a term used to describe

Correct Answer: 250

Solution : Given:
4 : 128 :: 5 : ? :: 7 : 686

Here, multiply the cube of the first number by 2 to get the second number –
Like in, 4 : 128→4³ × 2 = 128
And in, 7 : 686 →7³

Correct Answer: Windows logo key + L

Solution : The correct answer is Windows logo key + L.

In Windows 10, the keyboard shortcut used to lock the screen is "Win + L" (the Windows key plus the letter "L"). Pressing these keys together will quickly lock your computer

Correct Answer: Either house of Parliament

Solution : The correct answer is Either House of Parliament.

The President is removed from office if they are found to have violated the Constitution through the process of impeachment. Either House of Parliament may start the impeachment procedure. The President of India may

Correct Answer: 52.5 km/hr

Solution : Given: A bus travels for three hours at $60$ km/hr, four hours at $50$ km/hr, and the next five hours at $50$ km/hr.
Total distance travelled by the bus = $(60×3)+(50×4)+(50×5) = 630$ km
Total time taken by the bus = $(3+4+5) = 12$

Correct Answer: – 29

Solution : Given equation,
$K+\frac{1}{K}=-3$ ..........(1)
Squaring the equation, we get,
$(K+\frac{1}{K})^2=(-3)^2$
$K^2 + \frac{1}{K^2} + 2 = 9$
⇒ $K^2 + \frac{1}{K^2} = 7$ ...........(2)
Cubing equation (1), we get
$(K+\frac{1}{K})^3 = (-3)^3$
⇒ $K^3 + \frac{1}{K^3} + 3\cdot K\cdot\frac{1}{K}(K+\frac{1}{K}) = -27$
⇒ $K^3+\frac{1}{K^3}+3(-3) =

Correct Answer: Li and Mg

Solution : The correct answer is Li and Mg.

The relationship exists between Li (Lithium) and Mg (Magnesium). This means that they are in different parts of the periodic table, they share some similar properties because their atoms and ions are roughly the same

Correct Answer: $\frac{12}{13}$

Solution :
Given, $\tan Q = \frac{5}{12}$
We know, $\tan\theta = \frac{\text{Perpendicular}}{\text{Base}}$
Applying Pythagoras theorem,
$\small\text{Hypotenuse}^2 = \text{Perpendicular}^2+\text{Base}^2$
⇒ $\text{H}^2=5^2+12^2$
⇒ $\text{H}^2 = 25 + 144$
⇒ $\text{H}=\sqrt{169}$
⇒ $\text{H} = 13\ \text{units}$
Now, $\cos\theta = \frac{\text{Base}}{\text{Hypotenuse}}$
⇒ $\cos Q = \frac{12}{13}$
Hence, the correct answer is

Correct Answer: Swami Dayananda Saraswati

Solution : The correct answer is Swami Dayananda Saraswati.

The Arya Samaj was founded by Swami Dayananda Saraswati in 1875. Swami Dayananda Saraswati advocated for a return to the teachings of the Vedas, emphasising monotheism, social equality, and the right of individuals to interpret

Correct Answer: Football

Solution : Football was liked by 122 students.
Hockey was liked by 58 students.
Cricket was liked by 115 students.
Kabaddi was liked by 50 students.
Tennis was liked by 105 students.
$\therefore$ Football is the favourite sport of most students.
Hence, the correct answer is Football.