Correct Answer: Angle of Reflection

Solution : The correct option is the Angle of Reflection.

The angle measured from the reflected ray to the normal surface is called the "angle of reflection." The angle of reflection is the angle between the reflected ray and the normal (a line perpendicular

Correct Answer: 1

Solution : Given: $(x^{b+c})^{b–c}(x^{c+a})^{c–a}(x^{a+b})^{a–b}$ $(x\neq 0)$
= $(x^{(b+c)×(b–c)})(x^{(c+a)(c–a)})(x^{(a+b)×(a–b)})$
= $(x^{(b^{2}–c^{2})})(x^{(c^{2}–a^{2})})(x^{(a^{2}–b^{2})})$
= $x^{(b^{2}–c^{2}+c^{2}–a^{2}+a^{2}–b^{2})}$
= $x^{0}$
= 1
Hence, the correct answer is 1.

Correct Answer: Neither conclusion I nor II follows

Solution : The possible Venn diagram according to the statements is as follows –

Let's analyse the conclusions –
Conclusion (I): Some knives are forks – According to the Venn diagram, there is no definite relation between knives and forks. Therefore, this

Correct Answer: pi

Solution : Given:
1. rocket aeroplane sky stars ⇒ ci pi di ki
2. satellite moon sun sky ⇒ ni ci ui li
3. sky sun stars mars ⇒ ui gi ki ci
4. venus aeroplane moon planet ⇒ di qi mi ni

By comparing all the

Correct Answer: ÷ and ×

Solution : Given:
19 – 39 × 3 + 25 ÷ 5 = 131

Let's check the options –
First option: + and ÷
= 19 – 39 × 3 ÷ 25 + 5 
= 19 – 39 × 0.12 + 5
= 19 –

Correct Answer: A

Solution : Given:
EFGHI, LMNO, RST, WX, ?

Each term of the series contains consecutive letters in alphabetical order and the number of letters in each term of the series decreases by 1.
EFGHI→5, LMNO→4, RST→3, WX→2; The next term will contain only one letter.
Add 3

Correct Answer: $3\sqrt3$ cm

Solution : Let $a$ be the side of the triangle.
The perimeter of an equilateral triangle = 18 cm
$3a=18$
$\therefore a=\frac{18}{3}=6$ cm
So, length of the median $=\frac{\sqrt3a}{2}=\frac{\sqrt3×6}{2}=3\sqrt3$ cm
Hence, the correct answer is $3\sqrt3$ cm.

Correct Answer: Calcium hypochlorite

Solution : The correct option is calcium hypochlorite.

The chemical name of bleaching powder is calcium hypochlorite, with the chemical formula Ca(ClO)₂. It is a chemical compound that is widely used for its bleaching, disinfecting, and oxidizing properties.

Correct Answer: 1000 and 2000

Solution : The correct option is 1000 and 2000.

The term "temperate rainforest" refers to the wet temperate forest type that is normally found between 1000 and 2000 metres above sea level. High precipitation and comfortable temperatures create a rich, varied ecology with an

Correct Answer: Al-Biruni

Solution : The correct option is Al-Biruni.

The book Kitab-ul-Hind was written by the famous Persian scholar and polymath Al-Biruni. Al-Biruni was a medieval Islamic scholar who made significant contributions to various fields, including astronomy, mathematics, geography, and history. Kitab-ul-Hind is one of his notable works,