✓ 1 MARKS
MCQ
🔥 APPEARED IN 6 BOARD SETS
For any two vectors $\vec{a}$ and $\vec{b}$, which of the following statements is always true ?
A
$\vec{a} \cdot \vec{b} \le |\vec{a}|\,|\vec{b}|$
B
$|\vec{a} + \vec{b}| \ge |\vec{a}| + |\vec{b}|$
C
$|\vec{a} - \vec{b}| = |\vec{a}| - |\vec{b}|$
D
$|\vec{a} \times \vec{b}| \ge |\vec{a}|\,|\vec{b}|$
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 65-3 | Set 1 | Question 14 |
| CBSE 2026 | Series 65-3 | Set 2 | Question 7 |
| CBSE 2026 | Series 65-3 | Set 3 | Question 18 |
| CBSE 2024 | Series Other | Set 1 | Question 8 |
| CBSE 2024 | Series Other | Set 1 | Question 2 |
| CBSE 2024 | Series Other | Set 1 | Question 14 |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)